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A 3.0MeV KOMAC/KTF RFQ Linac J.M. Han, K.S. Kim, Y.J. Kim, M.Y. Park, Y.S. Cho, B.H. Choi, KAERI, Taejon, Korea Y.S. Bae, K.Y. Shim, K.H. Kim, I.S. Ko, POSTECH, Pohang, Korea S.J. Cheon, KAIST, Taejon, Korea Y. Oguri, TIT, Japan Abstract The Radio-Frequency Quadrupole (RFQ) linac that will accelerate a 20mA proton bea...
DEVELOPMENT OF THE LOW ENERGY ACCELERATOR FOR KOMAC B.H. Choi, J.M. Han, Y.S. Cho, K.S. Kim, Y.J. Kim, KAERI, Taejon, Korea I.S. Ko, Postech, Pohang, Korea K.S Chung Hanyang Univ, Seoul, Korea K.H. Chung, Seoul Nat. Univ., Seoul, Korea Abstract KAERI (Korea Atomic Energy Research Institute) has been performing the proj...
A HIGH-INTENSITY H– LINAC AT CERN BASED ON LEP-2 CAVITIES M. Vretenar for the SPL Study Group, CERN, Geneva, Switzerland Abstract In view of a possible evolution of the CERN accelerator complex towards higher proton intensities, a 2.2 GeV H- linac with 4 MW beam power has been designed, for use in connection with an ac...
arXiv:physics/0008143 18 Aug 2000An ECR hydrogen negative ion source at CEA/Saclay: preliminary results. R. Gobin*, P -Y. Beauvais, O. Delferrière, R. Ferdinand, F. Harrault, J -M. Lagniel. Commissariat à l'Energie Atomique, CEA -Saclay, DSM/DAPNIA/SEA 91191 Gif sur Yvette Cedex, France *e-mail: rjgobin@c...
arXiv:physics/0008144 18 Aug 2000DESIGN OF THE ESS RFQs AND CHOPPING LINE R. Duperrier, R. Ferdinand, P. Gros, J-M. Lagniel, N. Pichoff, D. Uriot CEA-Saclay, DSM-DAPNIA-SEA Abstract The chopping line is a critical part of the ESS lin ac in term of technical realisation of the choppers and preservation of t...
arXiv:physics/0008145 18 Aug 2000STATUS REPORT ON THE 5 MeV IPHI RFQ R. Ferdinand, P-Y. Beauvais, R. Duperrier, A. France, J. Gaiffier, J-M. Lagniel, M. Painchault, F. Simoens, CEA-Saclay, DSM-DAPNIA-SEA P. Balleyguier, CEA-Bruyères le Châtel, DAM Abstract A 5-MeV RFQ designed for a proton current up to 100...
Continued Monitoring of the Conditioning of the Fermilab Linac 805 MHz Cavities* E. McCrory, T. Kroc, A. Moretti, M. Popovic, Fermilab, Batavia, IL 60510, USA Abstract We have reported previously on the conditioning of the high-gradient accelerating cavities in the Fermilab Linac [1, 2, 3]. Automated measuremen...
THE FABRE PROJECT AT TRIESTE G. D'Auria, C. Rossi - Sincrotrone Trieste. M. Danailov - Laboratorio Fibre Ottiche-Sincrotrone Trieste. M. Ferrario - INFN Laboratori Nazionali Frascati. N. Piovella, L. Serafini - Universita' di Milano and INFN. Abstract A program to design a high brilliance electron source suitable for a...
arXiv:physics/0008148v1 [physics.acc-ph] 18 Aug 2000DESIGNOF THE7 MEV/U, 217MHZ INJECTORLINACFOR THE PROPOSED IONBEAM FACILITYFORCANCER THERAPY ATTHE CLINICINHEIDELBERG B. Schlitt,GSI, Planckstraße1, D-64291Darmstadt,German y A. Bechtold,U. Ratzinger, A. Schempp,IAP, Frankfurt amMai n, Germany Abstract A dedicated cl...
*This work is supported by the US DOE under contract no. W -31-109-ENG -38. A REAL -TIME ENERGY M ONITOR SYSTEM FOR TH E IPNS LINAC* J.C. Dooling, F. R. Brumwell, M.K. Lien, G. E. McMichael, ANL, Argonne, IL 60439, USA Abstract Injected beam energy and energy spread are critical parameters affecting the perf...
arXiv:physics/0008150 18 Aug 2000OPTICAL TRANSITION RADIATION (OTR) MEASUREMENTS OF AN INTENSE PULSED ELECTRON BEAM† C. Vermare, D. C. Moir and G. J. Seitz LANL, Los Alamos, N.M. 87454, USA † LA–UR – 00 – 2064Abstract We present the first time resolved OTR angul...
/G01/G02/G03/G02/G04/G05/G06/G07/G02/G08/G09/G0A/G05/G0B/G0A/G0C/G0A/G0D/G07/G0C/G0E/G09/G0A/G07/G05/G01/G0F/G04/G0C/G09/G05/G0E/G0A/G0C/G08/G01/G0A/G02/G0B/G0B/G10/G11/G10/G02/G08/G11/G12/G0A /G02/G03/G0C/G04/G0F/G0C/G09/G10/G05/G08/G0A/G05/G0B/G0A/G13/G14/G14/G15/G16/G02/G03/G0A/G17/G18/G17/G15/G0A/G11/G15/G19/G0C/G0...
arXiv:physics/0008152 18 Aug 2000RF CAVITIES FOR THE MUON AND NEUTRINO FACTORY COLLABORATION STUDY * A. Moretti, N. Holtkamp, T. Jurgens, Z. Qian and V. Wu, FNAL, Batavia, IL 60510, USA Abstract A multi-laboratory collaboration is studying the feasibility of building a muon collider, the first phase of which maybe a ...
*This work is supported by the US DOE under contract no. W -31-109-ENG -38. RELIABILITY HISTORY AND IMPROVEMENTS TO THE ANL 50 MEV H- ACCELERATOR* L.I. Donley, V.F. Stipp, F. R. Brumwell, G. E. McMichael, ANL, Argonne, IL 60439, USA Abstract The H- Accelerator consists of a 750 keV Cockcroft Walton preaccel...
arXiv:physics/0008154 18 Aug 2000TESTING AND IMPLEMENTATION PROGRESS ON THE ADVANCED PHOTON SOURCE (APS) LINEAR ACCELERATOR (LINAC) HIGH - POWER S-BAND SWITCHING SYSTEM A.E. Grelick, N. Arnold, S. Berg, D. Dohan, G. Goeppner, Y.W. Kang, A. Nassiri, S. Pasky, G. Pile, T. Smith, S.J. Stein Argonne National Lab...
arXiv:physics/0008155v1 [physics.chem-ph] 18 Aug 2000GRECP/MRD-CI calculations of the spin-orbit splitting in t he ground state of Tl and of the spectroscopic properties of TlH . A. V. Titov∗, N. S. Mosyagin Petersburg Nuclear Physics Institute, Gatchina, St.-Pete rsburg district 188350, RUSSIA A. B. Alekseyev, R. J....
THE DARHT PHASE 2 LINAC* H. L. Rutkowski, L. L. Reginato, W.L. Waldron, K. P. Chow, M. C. Vella, W. M. Fawley, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 R. Briggs, Science Applications International Corp., 7041 Koll Center Parkway, Suite 260 Pleasanton, CA 94566 S. Nelson, Lawrence Liv...
arXiv:physics/0008157v1 [physics.acc-ph] 18 Aug 2000OPTIMIZEDWAKEFIELDCOMPUTATIONS USING A NETWORK MODEL∗ J.-F. Ostiguy,K.-Y. Ng,FNAL, Batavia, IL 60510,USA Abstract Duringthe courseof the last decade,travelingwave accel- eratingstructuresforafutureLinearColliderhavebeenth e objectofintenseR&Defforts. Animportantprob...
HIGH POWER OPERATIONS OF LEDA* L. M. Young, L. J. Rybarcyk, J. D. Schneider, M. E. Schulzea, and H. V. Smith, Los Alamos National Laboratory, Los Alamos, NM 87544, USA Abstract The LEDA RFQ, a 350-MHz continuous wave (CW) radio-frequency quadrupole (RFQ), successfullyaccelerated a 100-mA CW proton beam from 75 keV to6....
arXiv:physics/0008159 18 Aug 2000The Beam Halo Experiment at LEDA P. L. Colestock, T. Wangler, C. K. Allen, R. L. Sheffield, D. Gilpatrick and the Diagnostics Group, M. Thuot and the Controls Group, the LEDA Operations Team, Los Alamos National Laboratory, M. Schulze and A. Harvey, General Atomics, Los Alamos, NM 87...
arXiv:physics/0008160v1 [physics.chem-ph] 18 Aug 2000Generalized Relativistic Effective Core Potential Method: Theory and calculations A. V. Titov∗and N. S. Mosyagin St.-Petersburg Nuclear Physics Institute, Gatchina, St.-Petersburg district 188350, RUSSIA (February 2, 2008) Abstract In calculations of heavy-atom mole...
arXiv:physics/0008161 18 Aug 2000SNS□□SUPERCONDUCTING□□CAVITY□□MODELING -ITERATIVE□LEARNING□CONTROL □□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□Sung-il□Kwon,□□Yi -Ming□Wang,□□Amy□Regan,□□Tony□□Rohlev, LANL,□Los□Alamos,□NM87544,□USA □□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□Mark□Prokop,□□Dav e□Thomson,□Honeywell□□FM&T Abstract □□...
Energy Transfer Mechanisms and Equipartitioning in non-Equilibrium Space -Charge -Dominated Beams R. A. Kishek , P. G. O’Shea, and M. Reiser, Institute for Plasma Research, U. Maryland, College Park, MD 20742, USA ramiak@ebte.umd.edu Abstract A pro...
arXiv:physics/0008163 18 Aug 2000ANALYSIS AND SYNTHESIS OF THE SNS SUPERCONDUCTING R F CONTROL SYSTEM Y.M. Wang, S.I. Kwon, and A.H. Regan, LANL, Los Ala mos, NM 87545, USA Abstract The RF system for the SNS superconducting linac consists of a superconducting cavity, a klystron, a nd a low-level RF (LLRF) control sys...
arXiv:physics/0008164v1 [physics.chem-ph] 18 Aug 2000SUBMITTED TO BRIAN HEAD SPECIAL ISSUE OF JPC Electronic coherence in mixed-valence systems: Spectral analysis Younjoon Jung, Robert J. Silbey, and Jianshu Cao∗ Department of Chemistry, Massachusetts Institute of Techn ology Cambridge, MA 01239 (January 5, 2014) Abs...
Faraday Cup Measurements of Ions Backstreaming into a Electron Beam Impinging on a Plasma Plume G. Guethlein, T. Houck, J. McCarrick, and S. Sampayan, LLNL, Livermore, CA 94550,USA Abstract The next generation of radiographic machines based on induction accelerators is expected to generate multiple, small diameter x-ra...
arXiv:physics/0008166 18 Aug 2000OVERVIEW OF THE HEAVY ION FUSION PROGRAM* C.M. Celata, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA for the U.S. Virtual National Laboratory for Heavy Ion Fusion * This work supported by the Office of E...
arXiv:physics/0008167v1 [physics.acc-ph] 19 Aug 2000DIPOLEMODE DETUNING INTHENLCINJECTORLINACS∗ K.L.F. Bane, Z. Li,SLAC, Stanford University,Stanford, CA 94309,U.S.A. 1 INTRODUCTION A major consideration in the design of the accelerator structures in the injector linacs of the JLC/NLC[1] is to keep the wakefield effec...
COLLECTIVE ACCELERATION OF IONS BY MEANS OF PLASMOIDS IN RF WELLS OF FREQUENCY-MODULATED LASER FIELD. A.I. Dzergatch and S.V. Vinogradov Moscow Radiotechnical Institute, 113519 Moscow, Russia 1. INTRODUCTION The proposed linear accelerator ("scanator") consists of a terawatt table-top laser and a set of passive element...
ANALYSIS OF THERMALLY INDUCED FREQUENCY SHIFT FOR THE SPALLATION NEUTRON SOURCE RFQ* S. Virostek, J. Staples, LBNL, Berkeley, CA 94720, USA * This work is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of ...
STATUS REPORT ON THE LOW-ENERGY DEMONSTRATION ACCELERATOR (LEDA)* H. Vernon Smith, Jr. and J. D. Schneider, Los Alamos National Laboratory, Los Alamos, NM 87545, USA Abstract The 75-keV injector and 6.7-MeV RFQ that comprise the first portion of the cw, 100-mA proton linac for theaccelerator production of tritium (APT...
arXiv:physics/0008171 19 Aug 2000SLAC Linac RF Performance for LCLS* R. Akre, V. Bharadwaj, P. Emma, P. Krejcik, SLAC, Stanford, CA 94025, USA * Supported by the U.S. Department of Energy, contra ct DE-AC03-76SF00515: LINAC2000 THC11: SLAC-PUB-857 4 † Through...
arXiv:physics/0008172v1 [physics.acc-ph] 19 Aug 2000JLCPROGRESS N.Toge, KEK,Tsukuba,Ibaraki 305-0801,Japan Abstract TheJLCisa linearcolliderprojectpursuedinJapanbyre- searchers centered around KEK. The R&D status for the JLC project is presented, with emphasis on recent results from ATF concerning studies of producti...
OBSERVATION OF A H- BEAM ION INSTABILITY Milorad Popovic and Todd Sullivan Fermi National Accelerator Laboratory1 Batavia, IL 60510, USA 1 This work is supported by U.S. Dept. Of Energy through the University Research Association under contract DE-AC35-...
2GeV SUPERCONDUCTING MUON LINAC Milorad Popovic Fermi National Accelerator Laboratory 1 Batavia, IL 60510, USA 1This work is supported by the U.S. Dept. of Energy through the Univ. Research Association under contract DE-AC35-89ER40486 Abstract A m...
BEAM ENERGY STABILIZATION OF THE KEK 40MEV PROTON LINAC Z.Igarashi, K.Nanmo, T.Takenaka and E.Takasaki High Energy Accelerator Research Organization, KEK Oho1-1, Tsukuba, Ibaraki, 305-0801, Japan Abstract The new method to stabilize the beam energy of the KEK 40MeV proton linac, is developed now. In this meth...
High Current Proton Tests of the Fermilab Linac M. Popovic, L. Allen, A. Moretti, E. McCrory, C.W. Schmidt and T. Sullivan Fermi National Accelerator Laboratory1 Batavia, Illinois, USA 1 This work is supported by U.S. Dept. Of Energy through the Universi...
arXiv:physics/0008177v1 [physics.acc-ph] 20 Aug 20002DSIMULATIONOF HIGH-EFFICIENCYCROSS-FIELD RF POWER SOURCES∗ Valery A. Dolgashev,SamiG. Tantawi†,SLAC, Stanford, CA 94309,USA 1 INTRODUCTION In a cross field device[1] such as magnetron or cross field amplifier electrons move in crossed magnetic and electric fields. Due ...
F. Naito, K. Yoshino, C. Kubota, T. Kato, Y. Saito, E. Takasaki, Y. Yamazaki, KEK, 1-1 Oho, Tsukuba-shi, Ibaraki-ken,305-0801 Japan S. Kobayashi, K. Sekikawa, M. Shibusawa, Saitama University Shimo-Okubo, Urawa, 338-8570 Japan Z. Kabeya, K. Tajiri, T. Kawasumi, Mitsubishi Heavy Industry 10 Oye-cho, Minato-ku, Nagoya, 4...
30 233548 Ø 3.3 685.3 5.5 3.53.3 7.5An electroformed layer.[mm] ( thickness: 1.0 mm ) 50.8 DEVELOPMENT OF A DTL QUADRUPOLE MAGNET WITH A NEW ELECTROFORMED HOLLOW COIL FOR THE JAERI/KEK JOINT PROJECT K. Yoshino, E. Takasaki, F, Naito, T. Kato, Y. Yamazaki, KEK, 1-1 Oho, Tsukuba-shi, Ibaraki-ken, 305-0801, Japan K. Tajir...
DEVELOPMENT OF SUPER CONDUCTING LINAC FOR THE KEK/JAERI JO INT PROJECT M.Mizumoto, N.Ouchi, J.Kusano, E.Chishiro, K.Hasegawa, N.Akaoka, JAERI, Tokai, Japan K.Saito, S.Noguchi, E.Kako, H.Inoue, T.Shishido, M.Ono, KEK, Tsukuba, Japan K.Mukugi, C.Tsukishima, MELCO, Kobe, Japan O.Takeda, Toshiba Corporation, Ka...
STUDY OF NONLINEARIT IES AND SMALL PARTIC LE LOSSES IN HIGH POWER LINAC A. Kolomiets, S. Yaramishev, ITEP, Moscow, Russia Abstract The conception of High Power Linac developed in Russian accelerator centres is based on the use of independently phased SC r esonators with quadrupole lenses between them. Th...
arXiv:physics/0008182 19 Aug 2000Control System for the LEDA 6.7-MeV Proton Beam Hal o Experiment1 L. A. Day, M. Pieck, D. Barr, K. U. Kasemir, B. A. Quintana, G. A. Salazar, M. W. Stettler Los Alamos, Los Alamos National Laboratory, NM 87545, USA 1 This work...
arXiv:physics/0008183 19 Aug 2000MULTIPLE-CHARGE BEAM DYNAMICS IN AN ION LINAC P.N. Ostroumov, J.A. Nolen, K.W. Shepard Physics Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL, 60439 Abstract There is demand for the construction of a medium- energy ion linear accelerator based on s...
arXiv:physics/0008184 19 Aug 2000HEAVY-ION BEAM ACCELERATION OF TWO-CHARGE STATES FROM AN ECR ION SOURCE P.N. Ostroumov, K.W. Shepard, Physics Division, ANL, 9700 S. Cass Av., Argonne, IL, 60439 V.N. Aseev, Institute for Nuclear Research, Moscow 117312, Russia A.A. Kolomiets, Institute of Theoretical and E...
arXiv:physics/0008185 19 Aug 2000MULTIPLE CHARGE STATE BEAM ACCELERATION AT ATLAS P.N. Ostroumov, R.C. Pardo, G.P. Zinkann, K.W. Shepard, J.A. Nolen, Physics Division, ANL, 9700 S. Cass Avenue, Argonne, IL60439, USA Abstract A test of the acceleration of multiple charge-state uranium beams was performed at t...
arXiv:physics/0008186v1 [physics.acc-ph] 19 Aug 2000Determining Phase-Space Properties of the LEDARFQ Output B eam∗ W.P. Lysenko,J.D.Gilpatrick,L.J.Rybarcyk, J.D.Schneid er, H.V. Smith,Jr.,and L.M.Young, LANL,Los Alamos,NM 87545,USA M.E.Schulze, General Atomics,LosAlamos,NM 87544,USA Abstract Quadrupolescanswereusedt...
arXiv:physics/0008187 19 Aug 2000CONCEPT OF STAGED APPROACH FOR INTERNATIONAL FUSION MATERIALS IRRADIATION FACI LITY M. Sugimoto, M. Kinsho, H. Takeuchi, JAERI, Tokai, Ibaraki, Japan Abstract The intense neutron source for development of fusio n materials planned by international collaboration ma kes a new...
This work performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.INDUCTIVE-ADDER KICKER MODULATOR FOR DARHT-2 E. G. Cook, B.S. Lee, S.A. Hawkins, F.V. Allen, B.C. Hickman, H.C. Kirbie Lawrence Livermore National L...
This work performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.REVIEW OF SOLID-STATE MODULATORS E. G. Cook, Lawrence Livermore National Laboratory, USA Abstract Solid-state modulators for pulsed power applicatio...
arXiv:physics/0008190v1 [physics.acc-ph] 20 Aug 2000ANALYSIS AND SIMULATIONOF THE ENHANCEMENT OF THECSR EFFECTS R. Li, JeffersonLab, 12000JeffersonAve.,NewportNews,VA 23606,USA Abstract Recent measurements of the coherent synchrotron radia- tion (CSR) effects indicated that the observed beam emit- tance growth and en...
arXiv:physics/0008191v1 [physics.acc-ph] 19 Aug 2000Ground MotionStudies andModeling for the InteractionRegi on of aLinear Collider∗ A.Seryi, M.Breidenbach, J. Frisch StanfordLinear AcceleratorCenter, StanfordUniversity, Stanford,California94309USA Abstract Groundmotionmaybealimitingfactorintheperformance offuturelin...
arXiv:physics/0008192v1 [physics.acc-ph] 19 Aug 2000Ground MotionModelofthe SLAC Site∗ AndreiSeryi, TorRaubenheimer StanfordLinear AcceleratorCenter, StanfordUniversity, Stanford,California94309USA Abstract WepresentagroundmotionmodelfortheSLACsite. This modelisbasedonrecentgroundmotionstudiesperformed at SLAC as wel...
arXiv:physics/0008193v1 [physics.acc-ph] 19 Aug 2000Simulation Studies ofthe NLCwithImprovedGround MotionMo dels∗ A. Seryi, L. Hendrickson,P. Raimondi,T.Raubenheimer, P. T enenbaum StanfordLinear AcceleratorCenter, StanfordUniversity, Stanford,California94309USA Abstract The performance of various systems of the Next...
MEASUREMENT AND CORRECTION OF CROSS-PLANE COUPLING IN TRANSPORT LINES* M. Woodley, P. Emma, SLAC, Stanford, CA 94309, USA * Work supported by the U.S. Department of Energy under Contract DE-AC02-76SF00515. Abstract In future linear colliders the lumino...
arXiv:physics/0008195v1 [physics.acc-ph] 20 Aug 2000Investigationsof SlowMotionsof the SLAC Linac Tunnel∗ Andrei Seryi StanfordLinear AcceleratorCenter, StanfordUniversity, Stanford,California94309USA Abstract Investigations of slow transverse motion of the linac tun- nel of the Stanford Linear Collider have been per...
arXiv:physics/0008196v1 [physics.acc-ph] 20 Aug 2000ASECOND-ORDER STOCHASTICLEAP-FROG ALGORITHMFOR LANGEVINSIMULATION∗ JiQiang and SalmanHabib, LANL,LosAlamos,NM 87545,USA Abstract Langevinsimulationprovidesaneffectivewaytostudycol- lisional effects in beams by reducing the six-dimensional Fokker-Planck equation to a...
RF PROCESSING OF X-BAND ACCELERATOR STRUCTURES AT THE NLCTA* C. Adolphsen, W. Baumgartner, K. Jobe, R. Loewen, D. McCormick, M. Ross, T. Smith, J.W. Wang, SLAC, Stanford, CA 94309 USA T. Higo, KEK, Tskuba, Ibaraki, Japan Abstract During the initial phase of operation, the linacs of the Next Linear Collid...
FABRICATION AND TOLERANCE ISSUES AND THEIR INFLUENCE ON MULTI-BUNCH BBU AND EMITTANCE DILUTION IN THE CONSTRUCTION OF X-BAND RDDS LINACS FOR THE NLC1 R.M. Jones, R.H. Miller, T.O. Raubenheimer, and G.V. Stupakov; SLAC, Stanford, CA, USA _____________ 1 Supported under U.S. DOE contract DE-AC03-76SF00515.Abstract The ma...
PULSED SC PROTON LINAC N. Ouchi, E. Chishiro, JAERI, Tokai, Japan C. Tsukishima, K. Mukugi, MELCO, Kobe, Japan Abstract The superconducting (SC) proton linac is proposed in the JAERI/KEK Joint Project for a high-intensity protonaccelerator in the energy region from 400 to 600 MeV.Highly stable fields in the SC cavities...
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arXiv:physics/0008201v1 [physics.acc-ph] 20 Aug 2000APPLICATIONS OF TIME DOMAIN SIMULATION TO COUPLER DESIGN FOR PERIODIC STRUCTURES∗ N. M. Kroll1,2, C.-K. Ng1and D. C. Vier2 1Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94309, USA 2University of California, San Diego, La Jolla, CA 92093, USA...
AN INVESTIGATION OF OPTIMISED FREQUENCY DISTRIBUTIONS FOR DAMPING WAKEFIELDS IN X-BAND LINACS FOR THE NLC R.M. Jones1, SLAC; N.M. Kroll2, UCSD & SLAC; R.H. Miller1, T.O. Raubenheimer1 and G.V. Stupakov1; SLAC _____________ 1 Supported under U.S. DOE contract DE-AC03-76SF00515 2 Supported under U.S. DOE grant DE-FG03-9...
COMPARISONS OF EQUIVALENT CIRCUIT PREDICTIONS WITH MEASUREMENTS FOR SHORT STACKS OF RDDS1 DISCS, AND THEIR POTENTIAL APPLICATION TO IMPROVED WAKEFIELD PREDICTION R.M. Jones1, SLAC; T. Higo, Y. Higashi, N. Toge, KEK; N.M. Kroll2, SLAC & UCSD; R.J. Loewen1, R.H. Miller1, and J.W. Wang1; SLAC _____...
New Development in RF Pulse Compression Sami G. Tantawi*, SLAC, Menlo Park, CA94025, USA Abstract Several pulse compression systems have been proposed for future linear colliders. Most of these systems requirehundreds of kilometers of low-loss waveguide runs. Toreduce the waveguide length and improve the efficiencyof...
arXiv:physics/0008205v1 [physics.acc-ph] 20 Aug 2000IMPEDANCE OF ABEAMTUBE WITHSMALL CORRUGATIONS∗ K.L.F. Bane, G. Stupakov,SLAC, Stanford University,Stanf ord, CA 94309,U.S.A. 1 INTRODUCTION In accelerators with very short bunches, such as is envi- sioned in the undulatorregionofthe Linac CoherentLight Source (LCLS)...
arXiv:physics/0008206v1 [physics.acc-ph] 21 Aug 2000COMPRESSION OF HIGH-CHARGE ELECTRONBUNCHES∗ M. J.Fitch, A. C. Melissinos;UniversityofRochester, Roch esterNY 14627,USA N.Barov, J.-P. Carneiro, H. T.Edwards, W.H. Hartung;FNAL, BataviaIL 60510,USA Abstract TheAØPhotoinjectoratFermilabcanproducehighcharge (10-14 nC) ...
arXiv:physics/0008207v1 [physics.acc-ph] 21 Aug 2000ELECTRO-OPTICSAMPLING OFTRANSIENT FIELDSFROM THE PASSAGE OF HIGH-CHARGEELECTRON BUNCHES∗ M.J. Fitch,A. C. Melissinos,UniversityofRochester, Roch esterNY 14627,USA P. L. Colestock,J.-P. Carneiro, H.T. Edwards,W. H.Hartung , FNAL,BataviaIL 60510,USA Abstract When a re...
arXiv:physics/0008208 21 Aug 2000Efficient Design Scheme of Superconducting Cavity Sang-ho Kim, Marc Doleans, SNS/ORNL, USA Yoon Kang, APS/ANL, USA Abstract For many next-generation high intensity proton accelerator applications including the Spallation N eutron Source (SNS), superconducting (SC) RF provides the tech...
STRUCTURAL ANALYSIS OF SUPERCONDUCTING ACCELERATOR CAVITIES * D. Schrage, LANL, Los Alamos, N.M., USA * Work sponsored by he Japan Atomic Energy Research Institute under contract DE-FI04-91AL73477-A012Abstract The static and dynamic structural behavior of su...
CW PERFORMANCE OF THE TRIUMF 8 METER LONG RFQ FOR EXOTIC IONS R. L. Poirier, R. Baartman, P. Bricault, K. Fong, S. Koscielniak, R. Laxdal, A. K. Mitra, L. Root, G. Stanford, D. Pearce, TRIUMF, Vancouver, B. C. Canada Abstract The ISAC 35 MHz RFQ is designed to accelerate ions of A/q up to 30 from 2keV/u to 150keV/u in ...
LOCAL AND FUNDAMENTAL MODE COUPLER DAMPING OF THE TRANSVERSE WAKEFIELD IN THE RDDS1 LINACS R.M. Jones1; SLAC, N.M. Kroll2; UCSD & SLAC, R.H. Miller1, C.-K. Ng1 and J.W. Wang1; SLAC _____________ 1Supported under U.S. DOE contractDE-AC03-76SF00515. 2Supported under U.S. DOE grant DE-FG03-93ER407.Abstract In damping the ...
AN OVERVIEW OF THE SPALLATION NEUTRON SOURCE PROJECT Robert L. Kustom, SNS/ORNL, Oak Ridge, TN Abstract The Spallation Neutron Source (SNS) is being designed, constructed, installed, and commissioned by the staff of six national laboratories, Argonne National Laboratory, Brookhaven National Laboratory, Jefferson Nation...
DESIGN OF 11.8 MHZ BUNCHER FOR ISAC AT TRIUMF A.K. MITRA, R.L. POIRIER, R.E. LAXDAL, TRIUMF Abstract The high energy beam transport (HEBT) line for the ISAC radioactive beam facility at TRIUMF requires an 11.8 MHz buncher. The main requirements of the buncher are to operate in cw mode with a velocity acceptance of2.2% ...
arXiv:physics/0008214v1 [physics.ins-det] 23 Aug 2000Predictions about the behaviour of diamond, silicon, SiC and some AIIIBVsemiconductor materials in hadron fields I.Lazanuaand S. Lazanub aUniversity of Bucharest, Faculty of Physics, P.O.Box MG-11 , Bucharest-Magurele, Romania, electronic address: ilaz@s cut.fizica.u...
arXiv:physics/0008215v1 [physics.atom-ph] 23 Aug 2000Laser spectroscopy of simple atoms and precision tests of bound state QED Savely G. Karshenboim1 D.I. Mendeleev Institute for Metrology, 198005 St. Petersb urg, Russia Max-Planck-Institut f¨ ur Quantenoptik, 85748 Garching, G ermany2 Abstract. We present a brief ov...
arXiv:physics/0008216v1 [physics.acc-ph] 23 Aug 2000NEW METHODOF DISPERSION CORRECTIONINTHEPEP-IILOW ENERGYRING∗ I.Reichel, Y. Cai, SLAC, Stanford, California SLAC-PUB- physics/0008216 Abstract The sextupole magnets in the Low Energy Ring (LER) of PEP-IIaregroupedinpairswithaphaseadvanceof180de- grees. Displacing the...
arXiv:physics/0008217v1 [physics.acc-ph] 23 Aug 2000SNS FRONT ENDDIAGNOSTICS∗ L.Doolittle,T.Goulding,D. Oshatz,A. Ratti, J.Staples, E. O.Lawrence Berkeley NationalLaboratory,Berkeley,CA 9 4720,USA Abstract TheFrontEndoftheSpallationNeutronSource(SNS)ex- tends from the Ion Source (IS), through a 65keV LEBT, a 402.5MHz...
arXiv:physics/0008218v1 [physics.acc-ph] 23 Aug 2000HIGHPOWERMODELFABRICATIONOF BIPERIODICL-SUPPORT DISK-AND-WASHERSTRUCTURE H. Ao∗, Y. Iwashita,T.Shirai and A. Noda, Accelerator Laboratory,NSRF, ICR, KyotoUniv., M. Inoue,Research ReactorInstitute,KyotoUniv., T.Kawakita,K. Ohkuboand K. Nakanishi,MitsubishiHeavy In du...
arXiv:physics/0008219v1 [physics.flu-dyn] 24 Aug 2000Integral methods for shallow free-surface flows with separation Shinya Watanabe Dept. of Mathematical Sciences, Ibaraki University, 310-8 512, Mito, Japan Vachtang Putkaradze Dept. of Mathematics & Statistics, University of New Mexico , Albuquerque, NM 87131-1141, U...
arXiv:physics/0008220v1 [physics.optics] 24 Aug 2000Binary Representations of ABCD Matrices S. Ba¸ skal∗ Department of Physics, Middle East Technical University, 0 6531 Ankara, Turkey Y. S. Kim† Department of Physics, University of Maryland, College Par k, Maryland 20742, U.S.A. Abstract TheABCD matrix is one of the ...
arXiv:physics/0008221v1 [physics.chem-ph] 24 Aug 2000Investigations of Amplitude and Phase Excitation Profiles in Femtosecond Coherence Spectroscopy Anand T.N. Kumar, Florin Rosca, Allan Widom and Paul M. Champ ion Department of Physics and Center for Interdisciplinary Res earch on Complex Systems, Northeastern Univer...
arXiv:physics/0008222v1 [physics.gen-ph] 24 Aug 2000P-Loop Oscillator on Clifford Manifolds and Black Hole Entropy Carlos Castro∗and Alex Granik† Abstract A new relativity theory, or more concretely an extended rela tivity theory, actively developed by one of the authors incorporat ed 3 basic concepts. They are the ol...
arXiv:physics/0008223v1 [physics.flu-dyn] 25 Aug 2000New complex variables for equations of ideal barotropic fluid A.L. Sorokin Institute of Thermophysics, 630090 Novosibirsk, Russia February 2, 2008 Abstract We propose new construction of dependent variables for equa tions of an ideal barotropic fluid. This constructi...
CHALLENGES IN AFFECTING US ATTITUDES TOWARDS SPACE SCIENCE Howard A. Smith Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA, 02138 USA hsmith@cfa.harvard.edu "[And] though I know that the speculations of a philosopher are far removed from the judgment of the multitude - for his aim is ...
1The easiest way to Heaviside ellipsoid Valery P Dmitriyev Lomonosov University P.O.Box 160, Moscow 117574, Russia e-mail: dmitr@cc.nifhi.ac.ru Abstract. The electric field of a point charge moving with constant velocity is derived using the symmetry properties of Maxwell's equations - its Lorentz invariance. In ...
arXiv:physics/0008226v1 [physics.class-ph] 28 Aug 2000Circular Orbits Inside the Sphere of Death Kirk T. McDonald Joseph Henry Laboratories, Princeton University, Princet on, New Jersey 08544 (November 8, 1993) Abstract A wheel or sphere rolling without slipping on the inside of a s phere in a uniform grav- itational...
arXiv:physics/0008227v1 [physics.class-ph] 28 Aug 2000The Rolling Motion of a Disk on a Horizontal Plane Kirk T. McDonald Joseph Henry Laboratories, Princeton University, Princet on, New Jersey 08544 mcdonald@puphep.princeton.edu (August 9, 2000) 1 Problem Discuss the motion of a (thin) disk of mass mand radius athat...
Entropy shows that global warming should cause increased variability in the weather* by John Michael Williams P. O. Box 2697, Redwood City, CA 94064jwill@pacbell.net Copyright (c) 2000, John Michael Williams All Rights Reserved * Posted at the American Physical Society Web site as aps1998nov15_001John Michael Williams ...
arXiv:physics/0008229 28 Aug 2000 1The birth of special relativity. "One more essay on the subject". Jean Reignier* Université Libre de Bruxelles and Vrije Universiteit Brussel. Introduction. In the general context of epistemological seminars on the occurrence of rapid transitions in sciences, I was asked to report o...
arXiv:physics/0008230v1 [physics.atom-ph] 28 Aug 2000Limit on Lorentz and CPT Violation of the Proton Using a Hydro gen Maser D. F. Phillips, M. A. Humphrey, E. M. Mattison, R. E. Stoner, R. F. C. Vessot and R. L. Walsworth Harvard–Smithsonian Center for Astrophysics, Cambridge, MA 02138 (submitted to Physical Review...
arXiv:physics/0008231v1 [physics.bio-ph] 28 Aug 2000PURINE-PYRIMIDINE SYMMETRY, DETERMINATIVE DEGREE AND DNA Diana Duplij and Steven Duplij∗† Kharkov National University, Svoboda Sq. 4, Kharkov 61077, Ukraine February 2, 2008 Abstract Various symmetries connected with purine-pyrimidine cont ent of DNA sequences are s...
arXiv:physics/0008232v1 [physics.bio-ph] 29 Aug 2000Minimum Entropy Approach to Word Segmentation Problems Bin Wang Institute of Theoretical Physics, Chinese Academy of Scien ces, P.O. Box 2735, Beijing 100080, P. R. China. State Key Laboratory of Scientific and Engineering Computin g, Institute of Computational Mathe...
arXiv:physics/0008233v1 [physics.ins-det] 29 Aug 2000Fast and Flexible CCD Driver System Using Fast DAC and FPGA Emi Miyataa,c, Chikara Natsukaria, Daisuke Akutsua, Tomoyuki KamazukaaMasaharu Nomachib, and Masanobu Ozakid aDepartment of Earth & Space Science, Graduate School of Scie nce, Osaka University, 1-1 Machika...
arXiv:physics/0008234v1 [physics.class-ph] 29 Aug 2000ON THE POSSIBILITY OF LOCAL SR CONSTRUCTION G.A. Kotel’nikov Russian Research Centre Kurchatov Institute, Moscow 12318 2, Russia E-mail: kga@electronics.kiae.ru Abstract The violation of the invariance of the speed of light in Speci al Relativity has been made. Th...
arXiv:physics/0008235v1 [physics.atm-clus] 29 Aug 2000Emergence of Bulk CsCl Structure in (CsCl) nCs+Cluster Ions Andr´ es Aguado Departamento de F´ ısica Te´ orica, Universidad de Valladol id, Valladolid 47011, Spain The emergence of CsCl bulk structure in (CsCl) nCs+cluster ions is investigated using a mixed quantu...
arXiv:physics/0008236v1 [physics.flu-dyn] 29 Aug 2000Equilibrium solutions of the shallow water equations Peter B. Weichman1and Dean M. Petrich2 1Blackhawk Geometrics, 301 Commercial Road, Suite B, Golden , CO 80401 2Condensed Matter Physics 114-36, California Institute of T echnology, Pasadena, CA 91125 (February 2,...
arXiv:physics/0008237v1 [physics.acc-ph] 30 Aug 2000HIGHERDIPOLEBANDS INTHE NLCACCELERATING STRUCTURE∗ C. Adolphsen,K.L.F. Bane, V.A.Dolgashev,K. Ko,Z.Li, R. Mi ller,SLAC, Stanford, CA 94309,USA Abstract We show that scattering matrix calculations for dipole modes between 23-43 GHz for the 206 cell detuned struc- tur...
arXiv:physics/0008238v1 [physics.bio-ph] 30 Aug 2000Digitality Induced Transition in a Small Autocatalytic Syst em Yuichi Togashi and Kunihiko Kaneko Department of Basic Science, School of Arts and Sciences, Un iversity of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan September 29, 2013 Abstract Autocatalytic react...
arXiv:physics/0008239v1 [physics.chem-ph] 30 Aug 2000Comments on “Effective Core Potentials” [ M. Dolg, Modern Methods and Algorithms of Quantum Chemistry (Ed. by J.Grotendorst, John von Neumann Institute for Computing, J¨ ulich, NIC Seri es, Vol.1, ISBN 3-00-005618-1, pp.479-508, 2000) ]. A. V. Titov∗and N. S. Mosyag...