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2212.04398
Attosecond-Angstrom free-electron-laser towards the cold beam limit
[ "A. F. Habib", "G.G. Manahan", "P. Scherkl", "T. Heinemann", "A. Sutherland", "R. Altuiri", "B. M. Alotaibi", "M. Litos", "J. Cary", "T. Raubenheimer", "E. Hemsing", "M. Hogan", "J.B. Rosenzweig", "P. H. Williams", "B. W. J. McNeil", "B. Hidding" ]
8 Dec 2022
17 pages, 4 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Optics (physics.optics); Plasma Physics (physics.plasm-ph)
https://doi.org/10.48550/arXiv.2212.04398
Electron beam quality is paramount for X-ray pulse production in free-electron-lasers (FELs). State-of-the-art linear accelerators (linacs) can deliver multi-GeV electron beams with sufficient quality for hard X-ray-FELs, albeit requiring km-scale setups, whereas plasma-based accelerators can produce multi-GeV electron...
physics-01.zip/2212.04398.pdf
1308.0448
Proposal to generate 10 TW level femtosecond x-ray pulses from a baseline undulator in conventional SASE regime at the European XFEL
[ "Svitozar Serkez", "Vitali Kocharyan", "Evgeni Saldin", "Igor Zagorodnov", "Gianluca Geloni" ]
2 Aug 2013
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1308.0448
Output characteristics of the European XFEL have been previously studied assuming an operation point at 5 kA peak current. In this paper we explore the possibility to go well beyond such nominal peak current level. In order to illustrate the potential of the European XFEL accelerator complex we consider a bunch with 0....
physics-01.zip/1308.0448.pdf
1701.08178
Commissioning the DARHT-II accelerator
[ "Carl Ekdahl" ]
27 Jan 2017
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1701.08178
The 74-cell DARHT-II long-pulse linear induction accelerator (LIA) was commissioned in its final configuration in 2007-2008. The final accelerated beam parameters were 2 kA, and greater than 17 MeV in a pulse flat to better than +/- 1% for more than 1.6 micro-s. This report details the tuning of the LIA, diagnostics us...
physics-01.zip/1701.08178.pdf
1504.04314
Analytical methods for describing charged particle dynamics in general focusing lattices using generalized Courant-Snyder theory
[ "Hong Qin", "Ronald C. Davidson", "J. W. Burby", "Moses Chung" ]
16 Apr 2015
27 pages
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Mathematical Physics (math-ph)
https://doi.org/10.48550/arXiv.1504.04314
The dynamics of charged particles in general linear focusing lattices with quadrupole, skew-quadrupole, dipole, and solenoidal components, as well as torsion of the fiducial orbit and variation of beam energy is parameterized using a generalized Courant-Snyder (CS) theory, which extends the original CS theory for one d...
physics-01.zip/1504.04314.pdf
physics/0008149
A Real-Time Energy Monitor System for the IPNS Linac
[ "J.C. Dooling", "F. R. Brumwell", "M.K. Lien", "G. E. McMichael" ]
18 Aug 2000
3 pages, 5 figures, 8 equations
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0008149
Injected beam energy and energy spread are critical parameters affecting the performance of our rapid cycling synchrotron (RCS). A real-time energy monitoring system is being installed to examine the H- beam out of the Intense Pulsed Neutron Source (IPNS) 50 MeV linac. The 200 MHz Alvarez linac serves as the injector f...
physics-01.zip/physics_0008149.pdf
1809.06927
Transverse Instabilities of a Bunch with Space Charge, Wake and Feedback
[ "Alexey Burov" ]
18 Sep 2018
7 pages, 8 numbered formulas, 9 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1809.06927
When a resistive feedback and single-bunch wake act together, it is known that some head-tail modes may become unstable even without space charge. This feedback-wake instability, FWI, modified by space charge to a certain degree, is shown to have a special single-maximum increasing- dropping pattern with respect to the...
physics-01.zip/1809.06927.pdf
2405.08339
Automatic adjustment of undulator optics for FELs
[ "Zhichu Chen", "Bart Faatz" ]
14 May 2024
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2405.08339
In this paper, we describe a way to automatically adjust the quadrupole focusing along the undulator to avoid the instabilities, taking into account energy change and undulator focusing. The procedure is more generalized and applicable to any strongly focusing (planar) undulator.
physics-01.zip/2405.08339.pdf
1801.07651
LUX -- A Laser-Plasma Driven Undulator Beamline
[ "N. Delbos", "C. Werle", "I. Dornmair", "T. Eichner", "L. Hübner", "S. Jalas", "S. W. Jolly", "M. Kirchen", "V. Leroux", "P. Messner", "M. Schnepp", "M. Trunk", "P. A. Walker", "P. Winkler", "A. R. Maier" ]
23 Jan 2018
submitted
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1801.07651
The LUX beamline is a novel type of laser-plasma accelerator. Building on the joint expertise of the University of Hamburg and DESY the beamline was carefully designed to combine state-of-the-art expertise in laser-plasma acceleration with the latest advances in accelerator technology and beam diagnostics. LUX introduc...
physics-01.zip/1801.07651.pdf
1502.01771
HOMs Simulation and Measurement Results of IHEP02 Cavity
[ "Hongjuan Zheng", "Jiyuan Zhai", "Tongxian Zhao", "Jie Gao" ]
6 Feb 2015
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex)
https://doi.org/10.48550/arXiv.1502.01771
In cavities, there exists not only the fundamental mode which is used to accelerate the beam but also higher order modes (HOMs). The higher order modes excited by beam can seriously affect beam quality, especially for the higher R/Q modes. This paper reports on measured results of higher order modes in the IHEP02 1.3GH...
physics-01.zip/1502.01771.pdf
1301.6774
Fermilab PXIE Beam Diagnostics Development and Testing at the HINS Beam Facility
[ "V.A. Lebedev", "A.V. Shemyakin", "J. Steimel", "M. Wendt", "B.M. Hanna", "L.R. Prost", "V.E. Scarpine" ]
28 Jan 2013
3 pp. 3rd International Particle Accelerator Conference (IPAC 2012) 20-25 May 2012, New Orleans, Louisiana
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1301.6774
Fermilab is planning the construction of a prototype front end of the Project X linac. The Project X Injector Experiment (PXIE) is expected to accelerate 1 mA cw H- beam up to 30 MeV. Some of the major goals of the project are to test a cw RFQ and H- source, a broadband bunch-by-bunch beam chopper and a low-energy supe...
physics-01.zip/1301.6774.pdf
1804.02487
Detuning related coupler kick variation of a superconducting nine-cell 1.3 GHz cavity
[ "Thorsten Hellert", "Martin Dohlus" ]
7 Apr 2018
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1804.02487
Superconducting TESLA-type cavities are widely used to accelerate electrons in long bunch trains, such as in high repetition rate free electron lasers. The TESLA cavity is equipped with two higher order mode couplers and a fundamental power coupler (FPC), which break the axial symmetry of the cavity. The passing electr...
physics-01.zip/1804.02487.pdf
1806.08750
First Performance Results Of The PIP2IT MEBT 200 Ohm Kicker Prototype
[ "G. Saewert", "M.H. Awida", "B.E. Chase", "A. Chen", "J. Einstein-Curtis", "D. Frolov", "K. Martin", "H. Pfeffer", "D. Wolff", "S. Khole", "D. Sharma" ]
22 Jun 2018
3 pp
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1806.08750
The PIP-II project is a program to upgrade the Fermilab accelerator complex. The PIP-II linac includes a 2.1 MeV Medium Energy Beam Transport (MEBT) section that incorporates a unique chopping system to perform arbitrary, bunch-by-bunch removal of 162.5 MHz structured beam. The MEBT chopping system will consist of two ...
physics-01.zip/1806.08750.pdf
2504.16645
Preliminary design of a Cavity Tuner for Superconducting Radio-Frequency Cavity
[ "Ming Liu", "Jiyuan Zhai", "Feisi He", "Zhenghui Mi" ]
23 Apr 2025
10 pages, 14 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2504.16645
This paper introduces a newly designed cavity tuner for superconducting radio-frequency (SRF) cavity. Aiming to overcome the drawbacks of traditional tuning systems, like the limited tuning range of piezoelectric tuner and the low-speed tuning of stepper-motor-based tuner, this novel tuner is crafted to improve SRF cav...
physics-01.zip/2504.16645.pdf
1810.06265
Reconstructing nonlinear plasma wakefields using a generalized temporally encoded spectral shifting analysis
[ "C. Arran", "N. H. Matlis", "R. Walczak", "S. M. Hooker" ]
15 Oct 2018
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Plasma Physics (physics.plasm-ph)
https://doi.org/10.48550/arXiv.1810.06265
We generalize the temporally encoded spectral shifting (TESS) analysis for measuring plasma wakefields using spectral interferometry to dissimilar probe pulses of arbitrary spectral profile and to measuring nonlinear wakefields. We demonstrate that the Gaussian approximation used up until now results in a substantial m...
physics-01.zip/1810.06265.pdf
1608.00604
Response of a tungsten powder target to an incident high energy proton beam
[ "Ottone Caretta", "Tristan Davenne", "Chris Densham", "Mike Fitton", "Peter Loveridge", "Joey O' Dell", "N. Charitonidis", "I. Efthymiopoulos", "A. Fabich", "L. Rivkin" ]
29 Jul 2016
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex); Instrumentation and Detectors (physics.ins-det)
https://doi.org/10.48550/arXiv.1608.00604
The experiment described in this paper is the first study of the response of a static tungsten powder sample to an impinging high energy proton beam pulse. The experiment was carried out at the HiRadMat facility at CERN. Observations include high speed videos of a proton beam induced perturbation of the powder sample a...
physics-01.zip/1608.00604.pdf
2211.10213
Training performance of Nb3Sn Rutherford cables in a channel with a wide range of impregnation materials
[ "S. Otten", "A. Kario", "W.A.J. Wessel. J. Leferink", "H.H.J. ten Kate", "M. Daly", "C. Hug", "S. Sidorov", "A. Brem", "B. Auchmann", "P. Studer", "T. Tervoort" ]
18 Nov 2022
4 pages, 6 figures. Submitted to IEEE Transactions on Applied Superconductivity (TAS) for publication in the ASC2022 special issue. Copyright of the article was transferred to IEEE by submission
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2211.10213
Training of accelerator magnets is a costly and time consuming process. The number of training quenches must therefore be reduced to a minimum. We investigate training of impregnated Nb3Sn Rutherford cable in a small-scale experiment. The test involves a Rutherford cable impregnated in a meandering channel simulating t...
physics-01.zip/2211.10213.pdf
1504.01627
Scaling Behavior of Circular Colliders Dominated by Synchrotron Radiation
[ "Richard Talman" ]
7 Apr 2015
50 pages, 28 figures. White Paper at the IAS Program on the Future of High Energy Physics, Hong Kong, 2015
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1504.01627
The quite low Higgs particle mass makes it natural for the next high energy facility to be a circular e+e- Higgs factory and, after that, a next-generation p,p collider in the same tunnel. Surveying the luminosity-limiting phenomena of synchrotron radiation power loss, beam-beam interaction limitations, and beamstrahlu...
physics-01.zip/1504.01627.pdf
1608.03801
Electron Bunch Train Excited Higher-Order Modes in a Superconducting RF Cavity
[ "Yongfeng Gao", "Senlin Huang", "Fang Wang", "Liwen Feng", "Dehao Zhuang", "Lin Lin", "Feng Zhu", "Jiankui Hao", "Shengwen Quan", "Kexin Liu" ]
12 Aug 2016
Supported by National Natural Science Foundation of China (11275014)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1608.03801
Higher-order mode (HOM) based intra-cavity beam diagnostics has been proved effectively and conveniently in superconducting radio-frequency (SRF) accelerators. Our recent research shows that the beam harmonics in the bunch train excited HOM spectrum, which have much higher signal-to-noise ratio than the intrinsic HOM p...
physics-01.zip/1608.03801.pdf
physics/0109042
The influence of the dechanneling process on the photon emission by an ultra-relativistc positron channeling in a periodically bent crystal
[ "A. V. Korol", "A. V. Solov'yov", "W. Greiner" ]
18 Sep 2001
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0109042
We investigate, both analytically and numerically, the influence of the dechanneling process on the parameters of undulator radiation generated by ultra-relativistic positron channelling along a crystal plane, which is periodically bent. The bending might be due either to the propagation of a transverse acoustic wave t...
physics-01.zip/physics_0109042.pdf
1511.00914
DEMIRCI: An RFQ Design Software
[ "B. Yasatekin", "G. Turemen", "E. Celebi", "G. Unel", "O. Cakir" ]
3 Nov 2015 (<a href="https://arxiv.org/abs/1511.00914v1">v1</a>), last revised 21 Mar 2016 (this version, v2)
3 pages, 6 figures. Proceedings of the International Computational Accelerator Physics Conference (ICAP&#39;15), 12-16 October 2015, WEP10, p. 81
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1511.00914
The development and production of radio frequency quadrupoles, which are used for accelerating low-energy ions to high energies, continues since 1970s. The development of RFQ design software packages, which can provide ease of use with a graphical interface, can visualize the behavior of the ion beam inside the RFQ, an...
physics-01.zip/1511.00914.pdf
0810.2765
Beam dynamics and wake-field simulations for high gradient ILC linacs
[ "C. Glasman", "R.M. Jones" ]
15 Oct 2008
3 pages. To be published in LINAC 2008, Victoria, Canada
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.0810.2765
Higher order modes (HOMs) are simulated with finite element and finite difference computer codes for the ILC superconducting cavities. In particular, HOMs in KEK&#39;s Ichiro type of cavity and Cornell University&#39;s Reentrant design are focused on in this work. The aim, at these universities and laboratories, is to ...
physics-01.zip/0810.2765.pdf
1110.3212
High luminosity interaction region design for collisions inside high field detector solenoid
[ "Catia Milardi", "Miro Andrea Preger", "Pantaleo Raimondi", "Francesco Sgamma" ]
14 Oct 2011
12 pages, 9 figures, submitted to JINST
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1110.3212
An innovatory interaction region has been recently conceived and realized on the Frascati DA{\Phi}NE lepton collider. The concept of tight focusing and small crossing angle adopted to achieve high luminosity in multibunch collisions has evolved towards enhanced beam focusing at the interaction point with large horizont...
physics-01.zip/1110.3212.pdf
1404.3307
Channeling of Electrons in a Crossed Laser Field
[ "Sultan B. Dabagov", "Alexey V. Dik", "Evgenii N. Frolov" ]
12 Apr 2014 (<a href="https://arxiv.org/abs/1404.3307v1">v1</a>), last revised 10 Mar 2015 (this version, v3)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Plasma Physics (physics.plasm-ph)
https://doi.org/10.48550/arXiv.1404.3307
In this article a new analytical description of the effective interaction potential for a charged particle in the field of two interfering laser beams is presented. The potential dependence on the lasers intensities, orientation and parameters of the particle entering the considered system is analyzed. It is shown for ...
physics-01.zip/1404.3307.pdf
physics/0008186
Determining Phase-Space Properties of the LEDA RFQ Output Beam
[ "W.P. Lysenko", "J.D. Gilpatrick", "L.J. Rybarcyk", "J.D. Schneider", "H.V. Smith Jr", "L.M. Young", "M.E. Schulze" ]
19 Aug 2000
LINAC2000 conference, paper THB08
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0008186
Quadrupole scans were used to characterize the LEDA RFQ beam. Experimental data were fit to computer simulation models for the rms beam size. The codes were found to be inadequate in accurately reproducing details of the wire scanner data. When this discrepancy is resolved, we plan to fit using all the data in wire sca...
physics-01.zip/physics_0008186.pdf
physics/0411078
A Sensitivity Study for a MICE Liquid Hydrogen Absorber
[ "D. Errede", "I. Rakhno" ]
8 Nov 2004
5 pages, 3 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0411078
The International Muon Ionization Cooling Experiment (MICE) is devoted to a study of a muon cooling channel capable of giving the desired performance for a Neutrino Factory. One of the goals is achieving an absolute accuracy of measurements of emittance reduction as high as 0.1%. The paper describes results of a Monte ...
physics-01.zip/physics_0411078.pdf
physics/0205009
A Polarized Electron RF Photoinjector Using the Plane-Wave-Transformer (PWT) Design
[ "J. E. Clendenin", "R. E. Kirby", "D. Yu", "D. Newsham" ]
3 May 2002
14 pages, 5 figures, to be submitted to PRST-AB
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0205009
Polarized electron beams are now in routine use in particle accelerators for nuclear and high energy physics experiments. These beams are presently produced by dc-biased photoelectron sources combined with rf chopping and bunching systems with inherently high transverse emittances. Low emittances can be produced with a...
physics-01.zip/physics_0205009.pdf
1001.1861
Angular Distribution of Photons in Coherent Bremsstrahlung in Deformed Crystals
[ "V. V. Parazian" ]
12 Jan 2010
10 pages, 6 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Other Condensed Matter (cond-mat.other); High Energy Physics - Theory (hep-th)
https://doi.org/10.48550/arXiv.1001.1861
We investigate the angular distribution of photons in the coherent bremsstrahlung process by high-energy electrons in a periodically deformed single crystal with a complex base. The formula for the corresponding differential cross-section is derived for an arbitrary deformation field. The case is considered in detail w...
physics-01.zip/1001.1861.pdf
1803.01941
Density matrix approach for quantum free-electron lasers
[ "H. Fares", "G. R. M. Robb", "N. Piovella" ]
5 Mar 2018
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1803.01941
The density matrix in the Lindblad form is used to describe the behavior of the Free-Electron Laser (FEL) operating in a quantum regime. The detrimental effects of the spontaneous emission on coherent FEL operation are taken into account. It is shown that the density matrix formalism provides a simple method to describ...
physics-01.zip/1803.01941.pdf
physics/0304033
Transverse self-interactions within an electron bunch moving in an arc of a circle (generalized)
[ "Gianluca Geloni", "Jan Botman", "Marnix van der Wiel", "Martin Dohlus", "Evgeni Saldin", "Evgeni Schneidmiller", "Mikhail Yurkov" ]
9 Apr 2003
16 pages, 12 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0304033
Transverse self-interactions within a &#34;line&#34; bunch of electrons moving in an arc of a circle have been studied extensively by us from an electrodynamical viewpoint. Here we treat an electron bunch with a given vertical (i.e. perpendicular to the orbital plane) size by a generalization of our previous work to th...
physics-01.zip/physics_0304033.pdf
1812.11621
Measurement and modeling of electron-cloud-induced betatron tune shifts at the Cornell Electron-positron Storage Ring test accelerator
[ "Stephen Poprocki", "Sean Buechele", "James Crittenden", "Keefer Rowan", "David Rubin", "John San Soucie" ]
30 Dec 2018 (<a href="https://arxiv.org/abs/1812.11621v1">v1</a>), last revised 5 Aug 2019 (this version, v2)
Published version. 17 pages, 31 figures, 41 citations
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1812.11621
We report on extensive measurements at the Cornell Electron-positron Storage Ring of electron-cloud-induced betatron tune shifts for trains of positron bunches at 2.1 and 5.3 GeV with bunch populations ranging between 0.64x10^10 and 9.6x10^10. Measurements using a witness bunch with variable distance from the end of th...
physics-01.zip/1812.11621.pdf
2112.07487
Simulation of a high-energy electron beam transmission through titanium and Kapton$^\circledR$ thin films
[ "Tetiana Malykhina", "Stepan Karpus", "Oleg Shopen", "Valerii Prystupa" ]
14 Dec 2021 (<a href="https://arxiv.org/abs/2112.07487v1">v1</a>), last revised 16 Dec 2021 (this version, v2)
5 pages, 5 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Computational Physics (physics.comp-ph)
https://doi.org/10.48550/arXiv.2112.07487
The results of computer simulation of the high-energy electrons passage through thin layers of titanium (Ti) and polyimide Kapton$^\circledR$ in the energy range from 3 to 20 MeV are presented. Simulation is carried out using the Geant4 toolkit. The thickness of the Ti foil in the model experiment is 50 microns, the th...
physics-01.zip/2112.07487.pdf
2504.12065
Numerical and Analytical Study of the Magnetic Field Distribution in a Three-Solenoid System
[ "Mostafa Behtouei", "Alberto Bacci", "Martina Carillo", "Moreno Comelli", "Luigi Faillace", "Mauro Migliorati", "Livio Verra", "Bruno Spataro" ]
16 Apr 2025
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2504.12065
This paper investigates the magnetic fields produced by a three-coil system, focusing on how different mesh resolutions affect the accuracy of the results. Using both the Poisson solver, as well as a numerical approach based on the solution of fractional integrals, the study examines coils with dimensions of 80 mm by 1...
physics-01.zip/2504.12065.pdf
1003.3051
When will we know a muon collider is feasible? Status and directions of muon accelerator R&amp;D
[ "Vladimir Shiltsev" ]
16 Mar 2010
submitted to Mod. Phys. Lett. A
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex)
https://doi.org/10.48550/arXiv.1003.3051
Over the last decade there has been significant progress in developing the concepts and technologies needed to produce, capture, accelerate and collide high intensity beams of muons. At present, a high-luminosity multi-TeV muon collider presents a viable option for the next generation lepton-lepton collider, which is b...
physics-01.zip/1003.3051.pdf
0908.0456
An Intensive Pulsed Neutron Source Based On An Electron Ring Accelerator
[ "S.N.Dolya", "K.A.Reshetnikova" ]
4 Aug 2009
17 pages, 11 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.0908.0456
A neutron source is proposed. It is based on a proton accelerator with the energy Ep = 1.2 GeV, current Ip = 0.7A, pulse duration T = 3 mcsec, repetition rate F = 60 Hz, and accelerator length L = 30 m. <br>Protons are accelerated by the field of electron rings. The electron rings are formed from a tube beam by way of ...
physics-01.zip/0908.0456.pdf
1612.03967
Fast Instability Caused by Electron Cloud in Combined Function Magnets
[ "S. A. Antipov", "P. Adamson", "A. Burov", "S. Nagaitsev", "M.-J. Yang" ]
12 Dec 2016
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1612.03967
One of the factors which may limit the intensity in the Fermilab Recycler is a fast transverse instability. It develops within a hundred turns and, in certain conditions, may lead to a beam loss. The high rate of the instability suggest that its cause is electron cloud. We studied the phenomena by observing the dynamic...
physics-01.zip/1612.03967.pdf
2001.05576
Novel Approaches to High-Power Proton Beams
[ "Jeffrey Eldred" ]
15 Jan 2020
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2001.05576
The potentially realizable beam power at the Fermilab long-baseline neutrino program has motivated a reinvigorated design and optimization effort for a rapid-cycling synchrotron (RCS) intensity upgrade of the Fermilab proton complex. We examine areas of technological development with the potential for high-impact on th...
physics-01.zip/2001.05576.pdf
2509.14214
Time-of-flight Energy Measurements with BPMs
[ "A. Shemyakin", "J. Kuharik", "R. Sharankova" ]
17 Sep 2025
2025 North American Particle Accelerator Conference
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2509.14214
The energy of a bunched non-relativistic ion beam can be deduced from measuring the beam phases in neighbouring Beam Position Monitors (BPMs). This report discusses implementation of such a procedure at the PIP-II H- linac being constructed at Fermilab. The case when the flight time between BPMs is longer than the peri...
physics-01.zip/2509.14214.pdf
physics/0001065
Beam Coupling Impedances of Small Discontinuities
[ "Sergey Kurennoy" ]
27 Jan 2000
Lectures at US Particle Accelerator School in Tucson, AZ on January 17-21, 2000; LaTeX, 19 pages, 6 eps figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0001065
A general derivation of the beam coupling impedances produced by small discontinuities on the wall of the vacuum chamber of an accelerator is reviewed. A collection of analytical formulas for the impedances of small obstacles is presented.
physics-01.zip/physics_0001065.pdf
physics/0008008
Suppression of beam breakup instability in a long train by introducing energy spread between the bunches
[ "G. V. Stupakov" ]
3 Aug 2000
3 pages, 6 figures, submission MOE04 to LINAC2000
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0008008
Interaction between the bunches in the NLC main linac via long range wakefields can cause a beam breakup instability. Although the magnitude of the long range wakefields for an ideal NLC structure is below the instability threshold, the wake increases when structure manufacturing errors are taken into account. In case ...
physics-01.zip/physics_0008008.pdf
2111.02451
Simulation Study of the Space Charge Limit in Heavy-ion Synchrotrons
[ "Adrian Oeftiger", "Oliver Boine-Frankenheim", "Vera Chetvertkova", "Vladimir Kornilov", "Dmitrii Rabusov", "Stefan Sorge" ]
3 Nov 2021 (<a href="https://arxiv.org/abs/2111.02451v1">v1</a>), last revised 23 Feb 2022 (this version, v3)
17 pages, 24 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2111.02451
The SIS100 synchrotron as a part of the new FAIR accelerator facility at GSI should be operated at the &#34;space charge limit&#34; for light and heavy ion beams. Beam losses due to space charge induced resonance crossing should not exceed a few percent during a full cycle. The recent advances in the performance of par...
physics-01.zip/2111.02451.pdf
physics/0311133
Experimental investigation of coherent Smith-Purcell radiation from a &#34;flat&#34; grating
[ "A. Aryshev", "B. Kalinin", "G. Naumenko", "A. Potylitsyn", "R. Bardai", "B. Ishkhanov", "V. Shvedunov" ]
27 Nov 2003
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0311133
Using the pre-bunched electron beam of 5-MeV linear accelerator the coherent Smith-Purcell radiation (CSPR) from a flat periodic target (made of conductive layers separated by dielectric gaps) in millimeter wavelength region has been investigated. The angular distribution of this radiation was measured with a narrow-ba...
physics-01.zip/physics_0311133.pdf
2109.14221
Beam-Beam Interaction in a Dielectric Laser Accelerator Electron-Positron Collider
[ "R. Joel England", "Levi Schachter" ]
29 Sep 2021
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2109.14221
We examine through numerical calculation the collision of counter-propagating trains of optically spaced electron/positron microbunches in a 1 TeV collider scenario for a dielectric laser accelerator (DLA). A time-dependent envelope equation is derived for arbitrary number of bunches in the classical limit, with inclus...
physics-01.zip/2109.14221.pdf
2009.02020
Octupole based current horn suppresion in multi-stage bunch compression with emittance growth correction
[ "Nicholas Sudar", "Yuantao Ding", "Yuri Nosochkov", "Karl Bane", "Zhen Zhang" ]
4 Sep 2020
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2009.02020
High brightness linear accelerators typically produce electron beams with peaks in the head and/or tail of the current profile. These current horns are formed after bunch compression due to non-linear correlations in the longitudinal phase space and the higher order optics of the compressor. It has been suggested that ...
physics-01.zip/2009.02020.pdf
1107.2070
Exploring Minimal Scenarios to Produce Transversely Bright Electron Beams Using the Eigen-Emittance Concept
[ "Leanne D. Duffy", "Kip A. Bishofberger", "Bruce C. Carlsten", "Alex Dragt", "Quinn R. Marksteiner", "Steven J. Russell", "Robert D. Ryne", "Nikolai A. Yampolsky" ]
11 Jul 2011
7 pages, 2 figures, to appear in NIM A
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1107.2070
Next generation hard X-ray free electron lasers require electron beams with low transverse emittance. One proposal to achieve these low emittances is to exploit the eigen-emittance values of the beam. The eigen-emittances are invariant under linear beam transport and equivalent to the emittances in an uncorrelated beam...
physics-01.zip/1107.2070.pdf
1502.01626
Activation Products from Copper and Steel Samples Exposed to Showers Produced by 8 GeV Protons Lost in the Fermilab Main Injector Collimation System
[ "Bruce C. Brown", "Nikolai V. Mokhov", "Vitaly S. Pronskikh" ]
5 Feb 2015
9 pp
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1502.01626
In conjunction with efforts to predict residual radiation levels in the Fermilab Main Injector, measurements of residual radiation were correlated with the time history of losses. Detailed examination suggested that the list of radioactive isotopes used for fitting was incomplete. We will report on activation studies o...
physics-01.zip/1502.01626.pdf
1503.06660
Some notes on beam dynamics due to vertical oscillations in an all-electric storage ring
[ "S. R. Mane" ]
23 Mar 2015 (<a href="https://arxiv.org/abs/1503.06660v1">v1</a>), last revised 27 Mar 2015 (this version, v2)
8 pages, no figures, fix typos in version 1
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1503.06660
A document has recently been posted on the arXiv [1], describing analytical formulas and results of particle tracking simulations, for precision tests of numerical integration algorithms for an EDM (electric dipole moment) storage ring. In the context of an all-electric storage ring, the authors cite theoretical formul...
physics-01.zip/1503.06660.pdf
1810.12254
Particle physics experiments based on the AWAKE acceleration scheme
[ "M. Wing" ]
29 Oct 2018
10 pages, 4 figures. Presented at Royal Society meeting, &#34;Directions in particle beam-driven plasma wakefield acceleration&#34;
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex); Plasma Physics (physics.plasm-ph)
https://doi.org/10.48550/arXiv.1810.12254
New particle acceleration schemes open up exciting opportunities, potentially providing more compact or higher-energy accelerators. The AWAKE experiment at CERN is currently taking data to establish the method of proton-driven plasma wakefield acceleration. A second phase aims to demonstrate that bunches of about $10^9...
physics-01.zip/1810.12254.pdf
2410.16827
Experimental demonstration of cascaded round-to-flat and flat-to-round beam transformations
[ "Seongyeol Kim", "Philippe Piot", "Gonxiaohui Chen", "Scott Doran", "Wanming Liu", "Charles Whiteford", "Eric Wisniewski", "John Power" ]
22 Oct 2024
Submitted to Proceedings of AAC 2024 Workshop
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2410.16827
Magnetized beams beam with significant canonical angular momentum are critical to electron cooling of hadron beams such as contemplated in next-generation hadron and electron-ion colliders. The transport of magnetized electron beams over long distances in a locally non-axisymmetric external field is challenging. An alt...
physics-01.zip/2410.16827.pdf
1203.6632
Kelvin Probe Studies of Cesium Telluride Photocathode for AWA Photoinjector
[ "Eric Wisniewski", "Daniel Velazquez", "Zikri Yusof", "Linda Spentzouris", "Jeff Terry", "Katherine Harkay" ]
29 Mar 2012 (<a href="https://arxiv.org/abs/1203.6632v1">v1</a>), last revised 17 May 2012 (this version, v2)
5 pages, 6 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1203.6632
Cesium telluride is an important photocathode as an electron source for particle accelerators. It has a relatively high quantum efficiency (&gt;1%), is sufficiently robust in a photoinjector, and has a long lifetime. This photocathode is grown in-house for a new Argonne Wakefield Accelerator (AWA) beamline to produce h...
physics-01.zip/1203.6632.pdf
1710.08850
Comparison of a modal-decomposition and a grid based field solver for free-electron laser simulations
[ "Pietro Falgari", "Henry P. Freund", "Dennis Grimminck" ]
24 Oct 2017
22 pages, 13 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1710.08850
We present a comparison of the modal-decomposition based field solver MINERVA to the grid-based solver GENESIS. The modal decomposition used employs a set of fixed-width, zero-curvature Gaussian modes, as opposed to the more-commonly used basis of vacuum-diffraction eigenmodes. Besides providing the dynamical equations...
physics-01.zip/1710.08850.pdf
1904.08512
Increasing charge lifetime in DC polarized electron guns by offsetting the anode
[ "Omer Rahman", "Erdong Wang", "Ilan Ben-Zvi", "Jyoti Biswas", "John Skaritka" ]
17 Apr 2019
16 pages, 10 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1904.08512
Charge lifetime of strained superlattice GaAs photocathodes in DC guns is limited by ion back bombardment. It needs to be improved at least an order of magnitude to meet the requirements for future colliders such as Electron-Ion Collider (EIC). In this work, we propose and present simulation results for an offset anode...
physics-01.zip/1904.08512.pdf
2211.00102
Superconducting Magnet System Concept with a Mechanical Energy Transfer in the Magnetic Field
[ "Vladimir Kashikhin" ]
31 Oct 2022
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2211.00102
There is an interest to design superconducting magnet systems working in a persistent current mode. These systems continuously generate magnetic field with disconnected power source working like permanent magnet devices. In this paper proposed a magnet system concept based on the direct mechanical energy transfer in th...
physics-01.zip/2211.00102.pdf
2509.21098
First Electron Acceleration in a Tunable-Velocity Laser Wakefield
[ "Aaron Liberman", "Anton Golovanov", "Slava Smartsev", "Anda-Maria Talposi", "Sheroy Tata", "Victor Malka" ]
25 Sep 2025
9 pages, 3 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Optics (physics.optics); Plasma Physics (physics.plasm-ph)
https://doi.org/10.48550/arXiv.2509.21098
We present the first experimental confirmation that a laser-wakefield accelerator produced by a flying focus pulse is able to maintain the coherent structures necessary to accelerate electrons to relativistic energies. Through a combination of spatio-temporal near-field shaping of the beam and focusing with an axiparab...
physics-01.zip/2509.21098.pdf
1504.07304
Confirmation of some formulas related to spin coherence time
[ "Yuri Orlov" ]
27 Apr 2015
6 pages, originally a Storage Ring EDM Collaboration Note (17 February 2013)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1504.07304
This paper considers two sets of formulas related to a Spin Coherence Time (SCT) case with only vertical oscillations in a purely electric ring, the first derived by the author for the field index m &gt; 0 and the second by Ivan Koop for the field index m = 0. I argue that a continuous transition can exist from one set...
physics-01.zip/1504.07304.pdf
2410.24038
Acceleration and Focusing Electron/Positron Bunches in Plasma-Dielectric Wakefield Accelerator
[ "Gennadiy V. Sotnikov", "Kostyantyn V. Galaydych", "Jay L. Hirshfield", "Peter I. Markov", "Ivan M. Onishchenko" ]
31 Oct 2024
33 pages, 13 fugures, AAC2024 Worhshop, will be submitted to Nuclear Instruments and Methods in Physics Research
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2410.24038
To mitigate the BBU instability and improve characteristics of accelerated bunches in Dielectric Wakefield Accelerator one can be used the isotropic plasma filling of the transport channel. Here we present the results of analytical and numerical studies of the dynamics of accelerated electron/positron and drive electro...
physics-01.zip/2410.24038.pdf
1209.4569
High Resolution BPM Upgrade for the ATF Damping Ring at KEK
[ "N. Eddy", "C. Briegel", "B. Fellenz", "E. Gianfelice-Wendt", "P. Prieto", "R. Rechenmacher", "A. Semenov", "D. Voy", "M. Wendt", "D. Zhang", "N. Terunuma", "J. Urakawa" ]
20 Sep 2012
3 pp. 10th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators DIPAC 2011, 16-18 May 2011. Hamburg, Germany
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1209.4569
A beam position monitor (BPM) upgrade at the KEK Accelerator Test Facility (ATF) damping ring has been accomplished, carried out by a KEK/FNAL/SLAC collaboration under the umbrella of the global ILC R&amp;D effort. The upgrade consists of a high resolution, high reproducibility read-out system, based on analog and proc...
physics-01.zip/1209.4569.pdf
1409.5750
Investigation Of Breakdown Induced Surface Damage On 805 Mhz Pillbox Cavity Interior Surfaces
[ "M.R. Jana", "M. Chung", "M. Leonova", "A. Moretti", "A. Tollestrup", "K. Yonehara", "B. Freemire", "Y. Torun", "D. Bowring", "G. Flanagan" ]
19 Sep 2014
3 p. Presented at North American Particle Accelerator Conference (PAC13) Conference
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1409.5750
The MuCool Test Area (MTA) at Fermilab is a facility to develop the technology required for ionization cooling for a future Muon Collider and/or Neutrino Factory. As part of this research program, we have tested two 805 MHz vacuum RF cavities in a multi-Tesla magnetic field to study the effects of the static magnetic f...
physics-01.zip/1409.5750.pdf
1207.3065
Educating and Training Accelerator Scientists and Technologists for Tomorrow
[ "William A. Barletta", "Swapan Chattopadhyay", "Andrei Seryi" ]
12 Jul 2012 (<a href="https://arxiv.org/abs/1207.3065v1">v1</a>), last revised 13 Aug 2012 (this version, v2)
19 pages, 3 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Physics Education (physics.ed-ph)
https://doi.org/10.48550/arXiv.1207.3065
Accelerator science and technology is inherently an integrative discipline that combines aspects of physics, computational science, electrical and mechanical engineering. As few universities offer full academic programs, the education of accelerator physicists and engineers for the future has primarily relied on a comb...
physics-01.zip/1207.3065.pdf
1508.00324
Characteristics of neutrons and proton beams arising from two different Beam Nozzles
[ "Yeon-Gyeong Choi", "Yu-Seok Kim" ]
3 Aug 2015
12 page, 3 figure
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Nuclear Experiment (nucl-ex); Instrumentation and Detectors (physics.ins-det)
https://doi.org/10.48550/arXiv.1508.00324
Tandem or Van de Graaff accelerator with an energy of 3-MeV is typically used for PIXE analysis. In this study, the beam line design used in PIXE analysis was used to increase the production of isotopes instead of the typical low-energy accelerator from a 13-MeV cyclotron. For PIXE analysis, the proton beam should be f...
physics-01.zip/1508.00324.pdf
0906.1683
4th Generation Light Sources and elementary particle physics
[ "E.G.Bessonov" ]
9 Jun 2009
8pages, 7 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.0906.1683
In this review a history of development of electron accelerators for HEP and for LSs in Russia is presented.
physics-01.zip/0906.1683.pdf
physics/9804015
Superconducting Superstructure for the TESLA Collider
[ "J. Sekutowicz", "M. Ferrario", "C. Tang" ]
14 Apr 1998
11 pages
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/9804015
We discuss the new layout of a cavity chain (superstructure) allowing, we hope, significant cost reduction of the RF system of both linacs of the TESLA linear collider. The proposed scheme increases the fill factor and thus makes an effective gradient of an accelerator higher. We present mainly computations we have per...
physics-01.zip/physics_9804015.pdf
physics/0702018
New electron source concept for single-shot sub-100 fs electron diffraction in the 100 keV range
[ "T. van Oudheusden", "E. F. de Jong", "B. J. Siwick", "S. B. van der Geer", "W. P. E. M. Op &#39;t Root", "O. J. Luiten" ]
2 Feb 2007
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0702018
We present a method for producing sub-100 fs electron bunches that are suitable for single-shot ultrafast electron diffraction experiments in the 100 keV energy range. A combination of analytical results and state-of-the-art numerical simulations show that it is possible to create 100 keV, 0.1 pC, 20 fs electron bunche...
physics-01.zip/physics_0702018.pdf
1209.4052
Status and Plans for an SRF Accelerator Test Facility at Fermilab
[ "M. Church", "J. Leibfritz", "S. Nagaitsev" ]
18 Sep 2012
4 pp. 15th International Conference on RF Superconductivity (SRF2011). 25-29 Jul 2011. Chicago, Illinois, USA
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1209.4052
A superconducting RF accelerator test facility is currently under construction at Fermilab. The accelerator will consist of an electron gun, 40 MeV injector, beam acceleration section consisting of 3 TTF-type or ILC-type cryomodules, and multiple downstream beam lines for testing diagnostics and performing beam experim...
physics-01.zip/1209.4052.pdf
1203.3626
Report from KEK (High gradient study results from Nextef)
[ "Toshiyasu Higo" ]
16 Mar 2012
LCWS11, Linear Collider Workshop 2011
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex)
https://doi.org/10.48550/arXiv.1203.3626
Most up-to-date high gradient test of the CLIC prototype structures as of September 2011 is described in this report. The &#34;T24&#34; undamped structure showed fast processing time, still-decreasing breakdown rate and its breakdown rate was estimated to be as low as the CLIC requirement. The &#34;TD24&#34; damped str...
physics-01.zip/1203.3626.pdf
1502.05261
Testing Beam-Induced Quench Levels of LHC Superconducting Magnets
[ "B. Auchmann", "T. Baer", "M. Bednarek", "G. Bellodi", "C. Bracco", "R. Bruce", "F. Cerutti", "V. Chetvertkova", "B. Dehning", "P.P. Granieri", "W. Hofle", "E.B. Holzer", "A. Lechner", "E. Nebot Del Busto", "A.Priebe", "S. Redaelli", "B. Salvachua", "M. Sapinski", "R. Schmidt", ...
18 Feb 2015 (<a href="https://arxiv.org/abs/1502.05261v1">v1</a>), last revised 26 Jun 2015 (this version, v2)
19 pages
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1502.05261
In the years 2009-2013 the Large Hadron Collider (LHC) has been operated with the top beam energies of 3.5 TeV and 4 TeV per proton (from 2012) instead of the nominal 7 TeV. The currents in the superconducting magnets were reduced accordingly. To date only seventeen beam-induced quenches have occurred; eight of them du...
physics-01.zip/1502.05261.pdf
2409.06619
Realizing Steady-State Microbunching with Optical Stochastic Crystallization
[ "M. Wallbank", "J. Jarvis" ]
10 Sep 2024
41st Free Electron Laser Conference (FEL2024)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2409.06619
Optical Stochastic Cooling (OSC) is a state-of-the-art beam cooling technology first demonstrated in 2021 at the IOTA storage ring at Fermilab&#39;s FAST facility. A second phase of the research program is planned to run in early 2025 and will incorporate an optical amplifier to enable significantly increased cooling r...
physics-01.zip/2409.06619.pdf
1110.2024
Coaxial Wire Measurements of Ferrite Kicker Magnets
[ "Hugo Day", "Michael Barnes", "Fritz Caspers", "Elias Metral", "Benoit Salvant", "Carlo Zannini", "Roger Jones" ]
10 Oct 2011
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1110.2024
Fast kicker magnets are used to inject beam into and eject beam out of the CERN accelerator rings. These kickers are generally transmission line type magnets with a rectangular shaped aperture through which the beam passes. Unless special precautions are taken the impedance of the yoke can provoke significant beam indu...
physics-01.zip/1110.2024.pdf
1402.3180
Research on the Design and Simulation of the CSRe Stochastic Cooling System
[ "Xue-Jing Hu", "You-Jin Yuan", "Jun-Xia Wu", "Xiao-Hu Zhang", "Huan Jia" ]
13 Feb 2014
5 pages, 9 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1402.3180
Stochastic cooling, as the different cooling mechanism from electron cooling, is designed and constructed on CSRe (experimental Cooling Storage Ring) in HIRFL (Heavy Ion Research Facility in Lanzhou) at present. The beam extracted from CSRm (main Cooling Storage Ring) is injected into the CSRe, and then the secondary b...
physics-01.zip/1402.3180.pdf
2103.10299
SPIRAL2 Cryomodules Models: a Gateway to Process Control and Machine Learning
[ "Adrien Vassal", "Adnan Ghribi", "François Millet", "François Bonne", "Patrick Bonnay", "Pierre-Emmanuel Bernaudin" ]
17 Mar 2021
11 pages, 8 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2103.10299
From simple physical systems to full production lines, numerical models could be used to minimize downtime and to optimize performances. In this article, the system of interest is the SPIRAL2 (Système de Production d&#39;Ions RAdioactifs en Ligne de 2e génération) particles accelerator cryogenic system. This paper illu...
physics-01.zip/2103.10299.pdf
2004.09452
Nanostructured Tube Wakefield Accelerator
[ "Aakash A. Sahai", "Toshiki Tajima", "Vladimir D. Shiltsev" ]
20 Apr 2020
6 pages, 4 figures. Submitted for peer-review in March 2020 (patent filed). The mechanism in this manuscript is founded on the crunch-in nonlinear surface mode in fiber-like tube structures in continuity with the work published by the lead author in Proc. IPAC 2015 (WEPJE001) (ref.13), PRAB 20, 081004, 2017 (ref.12) an...
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Plasma Physics (physics.plasm-ph)
https://doi.org/10.48550/arXiv.2004.09452
Unprecedented $\rm TeVm^{-1}$ acceleration gradients are modeled to be realizable using a nonlinear surface crunch-in mode in nanostructured tubes. This mode is realizable using advances in nanofabrication and solid energy density attosecond bunch compression. Three dimensional computational and analytical modeling dem...
physics-01.zip/2004.09452.pdf
2502.08863
RF phase effect in the ion-guide laser ion source (IG-LIS)
[ "Ruohong Li", "Maryam Mostamand", "Jens Lassen" ]
13 Feb 2025
13 pages, 6 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Instrumentation and Detectors (physics.ins-det)
https://doi.org/10.48550/arXiv.2502.08863
The effect of the phase between the radio frequency (RF) waveform driving the ion guide and the laser pulses generating ions on the intensity of the transmitted ion beam has been studied. Experiments were conducted at TRIUMF&#39;s offline laser ion source test stand (LIS-stand) and online at the isotope separator and a...
physics-01.zip/2502.08863.pdf
1010.5992
Luminosity Measurement at the International Linear Collider
[ "Iftach Sadeh" ]
28 Oct 2010
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); High Energy Physics - Experiment (hep-ex)
https://doi.org/10.48550/arXiv.1010.5992
The International Linear Collider (ILC) is a proposed electron-positron collider with a center-of-mass energy of 500~GeV, and a peak luminosity of $2 \cdot 10^{34}~\mathrm{cm}^{-2}\mathrm{s}^{-1}$. The ILC will complement the Large Hadron Collider, a proton-proton accelerator, and provide precision measurements, which ...
physics-01.zip/1010.5992.pdf
1210.1175
Analytic fluid theory of beam spiraling in high-intensity cyclotrons
[ "Antoine J. Cerfon", "Jeffrey P. Freidberg", "Felix I. Parra", "Timothy A. Antaya" ]
3 Oct 2012
23 pages, 7 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1210.1175
Using a two-dimensional fluid description, we investigate the nonlinear radial-longitudinal dynamics of intense beams in storage rings and cyclotrons. With a multiscale analysis separating the time scale associated with the betatron motion and the slower time scale associated with space-charge effects, we show that the...
physics-01.zip/1210.1175.pdf
1201.5905
LHC luminosity upgrade with large Piwinski angle scheme: a recent look
[ "C.M. Bhat", "F. Zimmermann" ]
27 Jan 2012
3 pp. 2nd International Particle Accelerator Conference: IPAC 2011, 4-9 Sep 2011: San Sebastian, Spain
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1201.5905
Luminosity upgrade at the LHC collider using longitudinally flat bunches in combination with the large crossing angle (large Piwinski angle scheme) is being studied with renewed interest in recent years. By design, the total beam-beam tune shift at the LHC is less than 0.015 for two interaction points together. But the...
physics-01.zip/1201.5905.pdf
1810.13301
Critical Fields of Nb$_3$Sn Prepared for Superconducting Cavities
[ "S. Keckert", "T. Junginger", "T. Buck", "D. Hall", "P. Kolb", "O. Kugeler", "R. Laxdal", "M. Liepe", "S. Posen", "T. Prokscha", "Z. Salman", "A. Suter", "J. Knobloch" ]
31 Oct 2018 (<a href="https://arxiv.org/abs/1810.13301v1">v1</a>), last revised 16 Apr 2019 (this version, v4)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1810.13301
Nb$_3$Sn is currently the most promising material other than niobium for future superconducting radiofrequency cavities. Critical fields above 120 mT in pulsed operation and about 80 mT in CW have been achieved in cavity tests. This is large compared to the lower critical field as derived from the London penetration de...
physics-01.zip/1810.13301.pdf
2112.14085
Longitudinal phase-space matching between radio-frequency systems with different harmonic numbers and accelerating voltages
[ "Volker Ziemann" ]
28 Dec 2021
11 pages, 3 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2112.14085
We describe a simple mechanism to transform bunches with matched longitudinal phase-space distributions from one RF system to a matched distribution of a second RF system operating on a different harmonic and with a different accelerating voltage. The process is reversible and the longitudinal emittance is preserved. S...
physics-01.zip/2112.14085.pdf
physics/9907027
Variable Field Bending Magnets for Recirculating Linacs
[ "Bruce J. King" ]
17 Jul 1999
18 pages. No figures. Submitted for the Muon Collider Workshop on Acceleration and Magnets, Mississippi University, Oxford, MI, 17-18 January, 1997
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/9907027
A lattice of single aperture superconducting variable field bending magnets is proposed as a cheap and practical way to recirculate the beams in recirculating linear accelerators. It is shown that the VFBM&#39;s can be configured to provide strong focusing in both transverse planes for the full range of beam momenta tr...
physics-01.zip/physics_9907027.pdf
1307.6185
Comment on Damping Force in the Transit-time Method of Optical Stochastic Cooling
[ "E. G. Bessonov", "A. A. Mikhailichenko" ]
23 Jul 2013
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1307.6185
In this brief report we pointed at mistake in paper A. Zholents, Damping Force in the Transit-Time Method of Optical Stochastic Cooling, PRLST. Mar 1, 2012. 2 pp. Published in <a href="http://Phys.Rev.ST" rel="external noopener nofollow" class="link-external link-http">this http URL</a> Accel. Beams 15 (2012) 032801.
physics-01.zip/1307.6185.pdf
2106.05813
Performance of the MICE diagnostic system
[ "MICE collaboration", "M. Bogomilov", "R. Tsenov", "G. Vankova-Kirilova", "Y. P. Song", "J. Y. Tang", "Z. H. Li", "R. Bertoni", "M. Bonesini", "F. Chignoli", "R. Mazza", "V. Palladino", "A. de Bari", "D. Orestano", "L. Tortora", "Y. Kuno", "H. Sakamoto", "A. Sato", "S. Ishimoto",...
10 Jun 2021 (<a href="https://arxiv.org/abs/2106.05813v1">v1</a>), last revised 16 Aug 2021 (this version, v2)
27 pages, 18 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2106.05813
Muon beams of low emittance provide the basis for the intense, well-characterised neutrino beams of a neutrino factory and for multi-TeV lepton-antilepton collisions at a muon collider. The international Muon Ionization Cooling Experiment (MICE) has demonstrated the principle of ionization cooling, the technique by whi...
physics-01.zip/2106.05813.pdf
1301.7350
Alignment and Aperture Scan at the Fermilab Booster
[ "K. Seiya", "J. Lackey", "W. Marsh", "W. Pellico", "D. Still", "K. Triplet", "A. Waller" ]
30 Jan 2013
3 pp. 3rd International Particle Accelerator Conference (IPAC 2012) 20-25 May 2012, New Orleans, Louisiana
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1301.7350
The Fermilab booster has an intensity upgrade plan called the Proton Improvement plan (PIP). The flux throughput goal is 2E17 protons/hour, which is almost double the current operation at 1.1E17 protons/hour. The beam loss in the machine is going to be the source of issues. The booster accelerates beam from 400 MeV to ...
physics-01.zip/1301.7350.pdf
2208.12368
RF Accelerator Technology R&amp;D: Report of AF7-rf Topical Group to Snowmass 2021
[ "Sergey Belomestnykh", "Emilio A. Nanni", "Hans Weise", "Sergey V. Baryshev", "Pashupati Dhakal", "Rongli Geng", "Bianca Giaccone", "Chunguang Jing", "Matthias Liepe", "Xueying Lu", "Tianhuan Luo", "Ganapati Myneni", "Alireza Nassiri", "David Neuffer", "Cho-Kuen Ng", "Sam Posen", "Sa...
25 Aug 2022
contribution to Snowmass 2021
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2208.12368
Accelerator radio frequency (RF) technology has been and remains critical for modern high energy physics (HEP) experiments based on particle accelerators. Tremendous progress in advancing this technology has been achieved over the past decade in several areas highlighted in this report. These achievements and new resul...
physics-01.zip/2208.12368.pdf
1007.0352
Cyclinac Medical Accelerators Using Pulsed C6+/H2+ Ion Sources
[ "A. Garonna", "U. Amaldi", "R. Bonomi", "D. Campo", "A. Degiovanni", "M. Garlasché", "I. Mondino", "V. Rizzoglio", "S. Verdú Andrés" ]
2 Jul 2010 (<a href="https://arxiv.org/abs/1007.0352v1">v1</a>), last revised 11 Aug 2010 (this version, v2)
Submitted to Journal of Instrumentation, as proceedings of EBIST2010 (25 June 2010) 13 pages, 8 figures Revised version submitted on 11 August 2010, 18 pages, 9 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Medical Physics (physics.med-ph)
https://doi.org/10.48550/arXiv.1007.0352
Charged particle therapy, or so-called hadrontherapy, is developing very rapidly. There is large pressure on the scientific community to deliver dedicated accelerators, providing the best possible treatment modalities at the lowest cost. In this context, the Italian research Foundation TERA is developing fast-cycling a...
physics-01.zip/1007.0352.pdf
1507.00707
Application of Real-time Digitization Technique in Beam Measurement for Accelerators
[ "Lei Zhao", "Linsong Zhan", "Xingshun Gao", "Shubin Liu", "Qi An" ]
30 Jun 2015
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Nuclear Experiment (nucl-ex)
https://doi.org/10.48550/arXiv.1507.00707
Beam measurement is very important for accelerators. With the development of analog-to-digital conversion techniques, digital beam measurement becomes a research hot spot. IQ (In-phase &amp; Quadrature-phase) analysis based method is an important beam measurement approach, the principle of which is presented and discus...
physics-01.zip/1507.00707.pdf
2408.07995
Beam dynamics performance of the proposed PETRA IV storage ring
[ "I. Agapov", "S. Antipov", "R. Bartolini", "R. Brinkmann", "Y-C. Chae", "E.C. Cortes-Garcia", "D. Einfeld", "T. Hellert", "M. Huening", "M.A. Jebramcik", "J. Keil", "C. Li", "L. Malina", "R. Wanzenberg" ]
15 Aug 2024
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.2408.07995
The PETRA IV project for upgrading the 2.3 km 6 GeV PETRA III storage ring to a diffraction-limited synchrotron radiation source is nearing the end of its detailed technical design phase. We present the ring lattice based on the hybrid six-bend achromat (H6BA) cell and a detailed evaluation of its beam dynamics perform...
physics-01.zip/2408.07995.pdf
1107.5619
Numerical modeling of a high power terahertz source at Shanghai
[ "Jinhua Dai", "Haixiao Deng", "Zhimin Dai" ]
28 Jul 2011
5 pages, 12 figures, 1 table, Submitted to Chinese Physics C
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Optics (physics.optics)
https://doi.org/10.48550/arXiv.1107.5619
On the basis of an energy-recovery linac, a terahertz (THz) source with kilowatts average power is proposed in Shanghai, which will serve as an effective tool in material and biological sciences. In this paper, the physical design of two free electron laser (FEL) oscillators, in the frequency range of 2~10THz and 0.5~2...
physics-01.zip/1107.5619.pdf
1701.01078
Installation Progress At The PIP-II Injector Test At Fermilab
[ "C. Baffes", "M. Alvarez", "R. Andrews", "A. Chen", "J. Czajkowski", "P. Derwent", "J. Edelen", "B. Hanna", "B. Hartsell", "K. Kendziora", "D. Mitchell", "L. Prost", "V. Scarpine", "A. Shemyakin", "J. Steimel", "T. Zuchnik", "A. Edelen" ]
4 Jan 2017
4 pp
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1701.01078
A CW-compatible, pulsed H- superconducting linac &#34;PIP-II&#34; is being planned to upgrade Fermilab&#39;s injection complex. To validate the front-end concept, a test accelerator (The PIP-II Injector Test, formerly known as &#34;PXIE&#34;) is under construction. The warm part of this accelerator comprises a 10 mA DC...
physics-01.zip/1701.01078.pdf
1912.09035
Modeling and simulation of transverse wakefields in PWFA
[ "Jian Bin Ben Chen", "Daniel Schulte", "Erik Adli" ]
19 Dec 2019 (<a href="https://arxiv.org/abs/1912.09035v1">v1</a>), last revised 25 Feb 2020 (this version, v2)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1912.09035
A simplified model describing the PWFA (plasma wakefield acceleration) transverse instability in the form of a wake function parameterized only with an effective cavity aperture radius $a$ is benchmarked against PIC-simulations. This wake function implies a $1/a^4$ scaling of the transverse wakefields, which indicates ...
physics-01.zip/1912.09035.pdf
1510.08825
Progress of the MICE experiment
[ "M. Bonesini" ]
29 Oct 2015
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Instrumentation and Detectors (physics.ins-det)
https://doi.org/10.48550/arXiv.1510.08825
The international Muon Ionization Cooling Experiment (MICE) will perform a systematic investigation of ionization cooling of a muon beam. The demonstration is based on a simplified version of a neutrino factory cooling channel. As the emittance measurement will be done on a particle-by-particle basis, sophisticated bea...
physics-01.zip/1510.08825.pdf
physics/0310071
Secondary Electron Yield Measurements of TiN Coating and TiZrV Getter Film
[ "F. Le Pimpec", "F. King", "R.E. Kirby", "M. Pivi" ]
15 Oct 2003 (<a href="https://arxiv.org/abs/physics/0310071v1">v1</a>), last revised 30 Aug 2004 (this version, v2)
14 pages, 16 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.physics/0310071
In the beam pipe of the positron Main Damping Ring (MDR) of the Next Linear Collider (NLC), ionization of residual gases and secondary electron emission give rise to an electron cloud which can cause the loss of the circulating beam. One path to avoid the electron cloud is to ensure that the vacuum wall has low seconda...
physics-01.zip/physics_0310071.pdf
1401.3951
Beam Extraction and Transport
[ "T. Kalvas" ]
16 Jan 2014
presented at the CERN Accelerator School CAS 2012: Ion Sources, Senec, 29 May - 8 June 2012
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1401.3951
This chapter gives an introduction to low-energy beam transport systems, and discusses the typically used magnetostatic elements (solenoid, dipoles and quadrupoles) and electrostatic elements (einzel lens, dipoles and quadrupoles). The ion beam emittance, beam space-charge effects and the physics of ion source extracti...
physics-01.zip/1401.3951.pdf
0810.2757
Beam dynamics and wake-field simulations for the CLIC main linacs
[ "V. Khan", "R.M. Jones" ]
15 Oct 2008
3 Pages. To be published in proceedings of LINAC 2008, Victoria, Canada
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.0810.2757
The CLIC linear collider aims at accelerating multiple bunches of electrons and positrons and colliding them at a centre of mass energy of 3 TeV. These bunches will be accelerated through X-band linacs, operating at an accelerating frequency of 12 GHz. Each beam readily excites wake-fields within the accelerating cavit...
physics-01.zip/0810.2757.pdf
1308.5496
Progress on the Construction of the 100 MeV / 100 kW Electron Linac for the NSC KIPT Neutron Source
[ "Chi Yun-Long", "Pei Shi-Lun", "Pei Guo-Xi", "Wang Shu-Hong", "Cao Jian-She", "Hou Mi", "Liu Wei-Bin", "Zhou Zu-Sheng", "Zhao Feng-Li", "Liu Rong", "Kong Xiang-Cheng", "Zhao Jing-Xia", "Deng Chang-Dong", "Song Hong", "Liu Jin-Tong", "Dai Xu-Wen", "Yue Jun-Hui", "Yang Qi", "He Da-...
26 Aug 2013
8 pages, 25 figures, submitted and accepted by Chinese Physics C (Formerly High Energy Physics and Nuclear Physics)
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1308.5496
IHEP, China is constructing a 100 MeV / 100 kW electron Linac for NSC KIPT, Ukraine. This linac will be used as the driver of a neutron source based on a subcritical assembly. In 2012, the injector part of the accelerator was pre-installed as a testing facility in the experimental hall #2 of IHEP. The injector beam and...
physics-01.zip/1308.5496.pdf
1806.09268
Cavity Simulator for European Spallation Source
[ "Maciej Grzegrzółka", "Krzysztof Czuba", "Mateusz Lipiński", "Igor Rutkowski" ]
25 Jun 2018
21st IEEE Real Time Conference
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Signal Processing (eess.SP); Instrumentation and Detectors (physics.ins-det)
https://doi.org/10.48550/arXiv.1806.09268
European Spallation Source will be the brightest neutron source in the world. It is being built in Lund, Sweden. Over 120 superconducting cavities will be installed in the facility, each regulated by an individual LLRF control system. To reduce the risk associated with testing the systems on real cavities a Cavity Simu...
physics-01.zip/1806.09268.pdf
1810.05686
Overview of LLRF System for iBNCT Accelerator
[ "Z. Fang", "K. Futatsukawa", "Y. Fukui", "T. Obina", "Y. Honda", "F. Qiu", "T. Sugimura", "S. Michizono", "S. Anami", "F. Naito", "H. Kobayashi", "T. Kurihara", "M. Sato", "T. Miyajima", "T. Ohba", "N. Nagura" ]
12 Oct 2018
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1810.05686
At the Ibaraki Neutron Medical Research Center, an accelerator-based neutron source for iBNCT (Ibaraki - Boron Neutron Capture Therapy) is being developed using an 8-MeV proton linac and a beryllium-based neutron production target. The proton linac consists of an RFQ and a DTL, which is almost the same as the front par...
physics-01.zip/1810.05686.pdf
1002.4108
Errors in Measuring Transverse and Energy Jitter by Beam Position Monitors
[ "V. Balandin", "W. Decking", "N. Golubeva" ]
22 Feb 2010
30 pages, 6 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1002.4108
The problem of errors, arising due to finite BPM resolution, in the difference orbit parameters, which are found as a least squares fit to the BPM data, is one of the standard and important problems of accelerator physics. Even so for the case of transversely uncoupled motion the covariance matrix of reconstruction err...
physics-01.zip/1002.4108.pdf
1610.02093
Diffusion measurement from observed transverse beam echoes
[ "Tanaji Sen", "Wolfram Fischer" ]
6 Oct 2016 (<a href="https://arxiv.org/abs/1610.02093v1">v1</a>), last revised 4 Jan 2017 (this version, v4)
25 pages, 10 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1610.02093
We study the measurement of transverse diffusion through beam echoes. We revisit earlier observations of echoes in RHIC and apply an updated theoretical model to these measurements. We consider three possible models for the diffusion coefficient and show that only one is consistent with measured echo amplitudes and pul...
physics-01.zip/1610.02093.pdf
1112.4047
Synchrotron radiation representation in phase space
[ "Ivan Bazarov" ]
17 Dec 2011
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph); Optics (physics.optics)
https://doi.org/10.48550/arXiv.1112.4047
The notion of brightness is efficiently conveyed in geometric optics as density of rays in phase space. Wigner has introduced his famous distribution in quantum mechanics as a quasi-probability density of a quantum system in phase space. Naturally, the same formalism can be used to represent light including all the wav...
physics-01.zip/1112.4047.pdf
1702.03326
Model of Electron Cloud Instability In Fermilab Recycler
[ "S.A. Antipov", "A. Burov", "S. Nagaitsev" ]
10 Feb 2017
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1702.03326
An electron cloud instability might limit the intensity in the Fermilab Recycler after the PIP-II upgrade. A multibunch instability typically develops in the horizontal plane within a hundred turns and, in certain conditions, leads to beam loss. Recent studies have indicated that the instability is caused by an electro...
physics-01.zip/1702.03326.pdf
1601.04847
Analysis and Suppression of RF Radiation from the PSI 590MeV Cyclotron Flat Top Cavity
[ "Nathaniel Pogue", "Andreas Adelman", "Lukas Stingelin" ]
19 Jan 2016
24 pages 12 figures
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1601.04847
The Flat Top Cavity, located in the PSI HIPA Ring Cyclotron leaks RF power of several kilo Watts into the cyclotrons vacuum space causing several complications. A detailed electromagnetic model was created and simulations performed to analyze the mechanisms by which power is leaking out of the Flat Top Cavity. The tole...
physics-01.zip/1601.04847.pdf
1606.02586
Commissioning experience and beam physics measurements at the SwissFEL Injector Test Facility
[ "T. Schietinger", "M. Pedrozzi", "M. Aiba", "V. Arsov", "S. Bettoni", "B. Beutner", "M. Calvi", "P. Craievich", "M. Dehler", "F. Frei", "R. Ganter", "C. P. Hauri", "R. Ischebeck", "Y. Ivanisenko", "M. Janousch", "M. Kaiser", "B. Keil", "F. Löhl", "G. L. Orlandi", "C. Ozkan Loch...
8 Jun 2016 (<a href="https://arxiv.org/abs/1606.02586v1">v1</a>), last revised 27 Oct 2016 (this version, v3)
60 pages, 70 figures; final version as published, except with table of contents and Fig. 68 in full resolution
Accelerator Physics (physics.acc-ph)
Accelerator Physics (physics.acc-ph)
https://doi.org/10.48550/arXiv.1606.02586
The SwissFEL Injector Test Facility operated at the Paul Scherrer Institute between 2010 and 2014, serving as a pilot plant and testbed for the development and realization of SwissFEL, the X-ray Free-Electron Laser facility under construction at the same institute. The test facility consisted of a laser-driven rf elect...
physics-01.zip/1606.02586.pdf