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d7c22642-4d07-49fe-990c-0243204ff8a7 | Figure 3: LR meter measurements forprototype I.A.
Figure 4: Longitudinal scan of the transverse DC magnetic
field and corresponding kick strength for 6 GeV electron
beam, using a Senis sensor.
thez-axis. Thefieldwasthenmeasuredalongthelongitu-
dinal axis within a range of ±150mm. Additionally, both
the transverse plane... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6109.pdf | 2 |
edbbbaec-918d-455c-b14a-91a2aa474299 | corrector magnet at each longitudinal position of the sensor.
Due to the limited number of inputchannels (two channels
used by the sensor’s two differential outputs), frequency-
dependent measurements were taken for one plane at a time.
The AC scans for one plane are shown in [ 4].
AC Characterization with Search Coil
... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6109.pdf | 2 |
fbc0cd63-49e2-4450-9345-95d4434bc8ce | Figure 5: Transfer function for the integrated field of proto-
type I.A using search coil.
CONCLUSION
A testbench for characterising the actuator chain of the
FOFBsystemforPETRAIVhasbeendeveloped,initially
fortheprototypeprogramandalsoforlateruseinseriespro-
ductionof the magnets. The two-sensorapproachhas been
deploye... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6109.pdf | 2 |
dd2e7173-3586-4a84-bfd0-bc2098682a98 | andinparticularJörgLudwig,fortheirsupportduringthe
development and measurement phase, as well as the TEMF
Institute at TU Darmstadt for the extensive simulations.
REFERENCES
[1]S.H.Mirza etal.,“RequirementsanddesignforthePETRAIV
fastorbitfeedbacksystem”,in Proc.IBIC’22 ,Kraków,Poland,
Sep. 2022, pp. 343–347.
doi:1/zero... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6109.pdf | 2 |
dc051be8-c93c-47e7-bd9e-fc3f8a32e079 | ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6109
2802 MC6.T05: Beam Feedback SystemsWEP6109 WEP: Poster session
Content from this work may be used under the terms of the CC BY 4.0 licence (© 2026). Any distribution of this work must maintain attribution to the author(s), title of the work, p... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6109.pdf | 2 |
9f91fd4d-ec8b-43d0-9636-d9868aad6a3b | HIGHLIGHTS OF SPILL OPTIMIZA TION SY S TEM US A GE
A T GSI AND PR OGRESS OF C ONTR OLS INTEGRA TION
P . Nieder ma y er*, H. Bräuning , V . Kamerdzhie v , H. Lieber mann , T . Milosic , D. Ondreka , R. Singh ,
J. S tadlmann , M. T raxler , M. W iebusc h , B. Zipf el
GSI Helmholtzzentr um für Sc hw er ionenf orsc hung, ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
a5203a84-dfc8-4110-92db-86c16b2fb716 | e x p e r i m e n t a l c a m p a i g n s , e n a b l i n g i m p r o v e d s p i l l s t a b i l i t y
a n d m o r e e ffi c i e n t b e a m d e l i v e r y t o u s e r s u n d e r v a r i o u s
o p e r a t i o n a l c o n d i t i o n s . T h e e x p e r i e n c e g a i n e d d u r i n g t h e s e... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
0bf39a12-b11a-4daf-bae2-36c9a5bc5990 | m o n i t o r i n g o f s l o w e x t r a c t e d s p i l l s t h r o u g h t i g h t e r c o u p l i n g
w i t h a c c e l e r a t o r c o n t r o l s a n d u n i fi e d h u m a n a n d m a c h i n e
i n t e r f a c e s . T h i s c o n t r i b u t i o n s u m m a r i z e s t h e o p e r a t i o n ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
320de23c-be8c-4d5f-8967-27d81880b420 | u p t o u r a n i u m t o a b r o a d e x p e r i m e n t a l p r o g r a m [ 1 ] . T h e r e b y ,
r e s o n a n t s l o w e x t r a c t i o n i s u s e d t o d r i v e p a r t i c l e s i n t o t h e
e x t r a c t i o n b e a m l i n e s , e i t h e r c o n t r o l l e d b y a q u a d r u p... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
a641619f-7b63-446f-9b4b-84898b30e648 | t y p i c a l l y o b s e r v e d s p i l l i n t e n s i t y fl u c t u a t i o n s a n d d r i f t s a r e
detr imental to the efficient beam usag e.
T h e S p i l l O p t i m i z a t i o n S y s t e m ( S O S ) [ 2 – 4 ] w a s d e v e l -
o p e d t o o p t i m i z e t h e e x t r a c t i o n p r ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
89e8b32d-285c-4271-a9bf-f7fb3f784cef | s i g n a l f o r t h e k n o c k - o u t e x c i t a t i o n s y s t e m [ 5 ] . I n t h e c a s e
o f a q u a d r u p o l e - d r i v e n e x t r a c t i o n , i t p r o d u c e s a t u n e r a m p
w i t h a m o d u l a t i o n [ 6 ] f o r t h e q u a d r u p o l e p o w e r s u p p l y . ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
1a41ae57-2174-43c2-8e3d-bcb6d366034f | Optimization Sy s tem can be f ound in [ 2 ] .
* p.nieder ma y er@gsi.deOPERA TION AL HIGHLIGHTS
D u r i n g t h e 2 0 2 5 b e a m t i m e s t h e S p i l l O p t i m i z a t i o n
S y s t e m w a s u s e d a s a s t a n d a l o n e s y s t e m f o r R F - K O e x t r a c -
t i o n . A s t h e c o n... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
e4820c69-1865-4f7d-9606-a7402f80199a | t h e N U S T A R , R ³ B a n d H A D E S c o l l a b o r a t i o n s , b i o p h y s i c s
g roups and detector researc h prog rams [ 7 – 11 ] .
HADES F AIR Phase 0 Gold Run
F r o m 2 6 . A p r i l t h r o u g h 5 . M a y 2 0 2 5 t h e H A D E S c o l l a b -
o r a t i o n [ 1 2 ] c o n t i n u e d ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
052db894-bafe-4576-8edd-f542dc7e3e1c | t o r o f u p t o 1 2 kHz a t t h e e n e r g y o f 6 0 0 MeV / nucleon .
A m o n g o t h e r f a c t o r s , t h e i n c r e a s e c o m p a r e d t o p r e v i o u s
b e a m t i m e s w i t h o n l y 8 kHz [ 1 3 ] i s p o s s i b l e b e c a u s e o f t h e
s p i l l q u a l i t y o ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
e36873ee-5c49-4240-a1a2-3f63f4b88aec | t o t a l o f 6 b i l l i o n e v e n t s a n d 2 6 0 TB o f d a t a w e r e r e c o r d e d
d u r i n g t h e 2 1 6 h o u r s o f t h e b e a m t i m e ( F i g . 1 ) . T h e c o l l a b -
o r a t i o n r e p o r t s t h a t t h i s i s a l m o s t t h e n u m b e r o f a n t i c i p a ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
276abe1b-0d67-488c-938a-3872036f3ca0 | e n e r g i e s d u r i n g t h e 2 0 2 5 g o l d b e a m t i m e . T h e h a t c h e d a r e a
m a r k s t h e e a r l y s t a r t o n t h e w e e k e n d b e f o r e t h e s c h e d u l e d
b e a m t i m e . T h e g r e e n w e d g e m a r k s t h e e v e n t r a t e a s s u m e d i n
t... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 0 |
28cfefa9-42d3-4427-8039-a3443195c69b | Dual Ion Beam Ther apy S tudy
I n M a y 2 0 2 5 s t u d i e s o n t h e s p i l l p r o p e r t i e s o f a b e a m
c o n s i s t i n g o f t h e t w o i o n s p e c i e s C1 2 3+ a n d He4 + w e r e
c o n d u c t e d a t S I S 1 8 [ 1 1 ] . S u c h b e a m s h a v e a p p l i c a t i o n s
i... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
51ec257a-6222-44ab-a298-bcf751fe999f | S y s t e m b a s e d o n t h e m e a s u r e d c a r b o n s i g n a l ( F i g . 2 ) .
K e e p i n g t h e c a r b o n i n t e n s i t y i n t h e s p i l l a t a c o n s t a n t v a l u e
e n a b l e d s t u d i e s o n t h e t i m e c u r v e o f t h e h e l i u m f r a c t i o n o v e... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
b55b571c-08f7-41a5-8c31-07d9f1665c6b | Extraction time / s0 . 00 . 20 . 40 . 60 . 81 . 01 . 21 . 4Intensity / arb. unit
F i g u r e 2 : I n t e n s i t y o f c a r b o n a n d h e l i u m c o n t r i b u t i o n s i n
t h e e x t r a c t e d s p i l l . T h e i n t e n s i t y f e e d b a c k c o n t r o l u s e s t h e
c a r b o n s i g... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
58c52199-5fdf-4387-9977-5a2bed0c0c28 | t i o n S y s t e m o n a r e g u l a r b a s i s w i t h o u t t h e n e e d f o r e x p e r t
i n t e r v e n t i o n s f o r s e t u p , a f u l l c o n t r o l s y s t e m i n t e g r a t i o n
o f t h e s y s t e m w a s r e q u i r e d . T h i s i n c l u d e s i m p l e m e n t i n g
e... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
7e69e427-24fa-4a10-8b38-9a76ed5c3ecf | p a r a m e t e r s a n d d e t e c t o r c a l i b r a t i o n f a c t o r s . I n a d d i t i o n , a n
i n t e g r a t e d u s e r i n t e r f a c e ( G U I ) f o r t h e o p e r a t i n g p e r s o n n e l
a n d p e r s i s t e n t s t o r a g e o f a l l r e l e v a n t p a r a m e t e r s i... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
f8d1054c-756b-4ddb-9f49-a874ab29e5ba | d y n a m i c i n t e n s i t y c o n t r o l a n d s p i l l p a u s e f o r b i o p h y s i c a l
a p p l i c a t i o n s , s p i l l a b o r t f o r m a c h i n e a n d d e t e c t o r s a f e t y ,
a n d a p a r a m e t r i z e d c o n t r o l c u r v e t o e n a b l e o p e r a t i o n w h ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
318c490c-04d5-4839-8193-963670ffac2b | m u l t i p l e x e r w a s b u i l d t o d y n a m i c a l l y r o u t e s i g n a l s f r o m
v a r i o u s b e a m - l i n e a n d e x p e r i m e n t d e t e c t o r s t o t h e f e e d b a c k
s y s t e m . I n c o m b i n a t i o n w i t h t h e F E S A i m p l e m e n t a t i o n ,
t h i s... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
09de3c31-8a5e-4ae3-89a4-b30d9edcf6a7 | t h e d e v e l o p m e n t o f a d e d i c a t e d G U I ( F i g . 3 ) w i t h b u i l t -
i n e x p e r t - k n o w l e d g e ( p r e s e t s , s a n i t y c h e c k s ) t o g e t h e r w i t h
c o m p r e h e n s i v e d o c u m e n t a t i o n e n a b l e s r o u t i n e o p e r a t i o n
b y ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
560bdffb-87c5-4e71-b69d-70ac4f941cd2 | personnel will f ollo w .
F igure 3: Screenshot of the GUI f or operating the SOS
OUTLOOK
F o l l o w i n g t h e s u c c e s s f u l u t i l i z a t i o n o f t h e S p i l l O p t i -
m i z a t i o n S y s t e m f o r R F - K O e x t r a c t i o n f r o m S I S 1 8 d u r i n g
t h e 2 0 2 5 b e a m... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
ad9a6ba8-7368-46f9-87f9-3da3ec9cd62e | REFEREN CES
[1] J . S t a d l m a n n e t a l . , “ N e w c a p a b i l i t i e s o f S I S 1 8 a f t e r u p g r a d e
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41dc8e03-40a2-43ce-9a6b-0636c866c4af | ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6111
2804 MC6.T05: Beam Feedback SystemsWEP6111 WEP: Poster session
Content from this work may be used under the terms of the CC BY 4.0 licence (© 2026). Any distribution of this work must maintain attribution to the author(s), title of the work, p... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 1 |
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a n d p r e s e n t s t a t u s... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 2 |
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[14] E . R e n n e r e t a l . , “ F i r s t m i x e d H e / C i o n b ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 2 |
b8d31e4a-f2c2-49c2-af6f-0731f580f25f | ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6111
MC6.T05: Beam Feedback Systems 2805WEP: Poster session WEP6111
Content from this work may be used under the terms of the CC BY 4.0 licence (© 2026). Any distribution of this work must maintain attribution to the author(s), title of the work, p... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6111.pdf | 2 |
ebc73e24-a686-419d-8638-5c35c4d5f34e | SYNCHRONIZED DEMULTIPLEXING OF A BEAM CURRENT SIGNAL
FOR A BUNCH-BY-BUNCH LONGITUDINAL FEEDBACK SYSTEM
C. Reinwald, H. Klingbeil1, Technical University of Darmstadt, Darmstadt, Germany
1also at GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
K. Groß, M. Hardieck, D. Lens,
GSI Helmholtzzentrum für... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
93a673b8-481c-4f85-ad49-0de23d1dc62c | cessing of a beam current signal provided by a Fast Current
Transformer. This signal is utilized as main input for the
feedbacksystemin order to detect longitudinal beam oscil-
lations of individual bunches. Therefore, it is demultiplexed
into a sequence of segments, each containing the beam cur-
rentsignalofasinglebuc... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
eeb84c89-eb55-4c6d-8ebc-8a304fc456c7 | forheavy-ionresearchinGermany,aBunch-By-BunchLon-
gitudinal Feedback System is in development. A schematic
showing the basic topology of the system is provided in
Fig.1.
FCT DEMUXuFCTSignal Processing
Bunch 1
Signal Processing
Bunch 2
...
Signal Processing
Bunch 10MUXKickerCavity
Beam
Figure 1: Schematic visualizing th... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
ae68fee2-37d9-4d92-9d2c-dfc8002dcfb6 | one specific bunch resulting in signals like 𝑢FCT,b1shownon the right-hand side of Fig. 2. This separation enables
anindividualmonitoringofthesinglebunchesinthering
by their dedicated signal processing units which, in case
longitudinal bunch oscillations are detected, generate corre-
sponding feedback signals to damp ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
cfe6a276-964f-4391-a8af-02b08a126bd2 | Longitudinal Feedback System can be found in [ 2–4].
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time in s
1.00
0.75
0.50
0.25
0.000.250.500.751.00Voltage in VuLFDDSA
uLFDDSB
uFCT
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time in s
1.00
0.75
0.50
0.25
0.000.250.500.751.00Voltage in VuLFDDSA
uLFDDSB
uFCT,b1
Figure 2: The diagram on t... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
81d76c2a-b591-44b2-bec6-8d3718bbe086 | (LFDDSA) and Longitudinal Feedback DDS B (LFDDSB)
forthegenerationoftheharmonicreferencesignals 𝑢LFDDSA
and𝑢LFDDSBvisualizedinFig. 2usingDirectDigitalSynthe-
sis(DDS).Additionally,thesystemincludestwoCalibration
ElectronicsModules(CEL)toadjustthephaseoftherefer-
ence signals, a demultiplexer module (DEMUX) to forward... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
e0a0c34f-d861-4050-80bc-1d52bda6e724 | ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6113
2806 MC6.T05: Beam Feedback SystemsWEP6113 WEP: Poster session
Content from this work may be used under the terms of the CC BY 4.0 licence (© 2026). Any distribution of this work must maintain attribution to the author(s), title of the work, p... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 0 |
3f937b2c-1f3b-4c2a-8195-72c365ba50e6 | Thedemultiplexingprocessiscontrolledbythetwohar-
monic RF reference signals 𝑢LFDDSAand𝑢LFDDSB. Such
signals are utilized as references for various purposes all
over the facility, e.g. to generate synchronized gap voltages
in all cavities. Their correct timing is ensured bythe Bunch-
phaseTimingSystemBuTiS[ 5,6]andthe... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 1 |
f700726a-4326-459d-ae1a-cd235e6496a0 | 𝑢LFDDSBtosendonlyonepulseofasinglebunchintheFCT
signaltoeachsignalprocessingunit. Thisisalsovalidfor
𝜑R≠ 0as the negative zero crossing of 𝑢LFDDSBrepresents
theboundarybetweentwoRFbuckets. Aftereachrevolution,
the number of the active output port of the demultiplexer is
resetusingthepositivezerocrossingof 𝑢LFDDSA,e... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 1 |
438623a9-dd34-4d4c-b63d-022630bd4f48 | The FCT is located at the synchrotronring while all other
componentsare located in theRF supplyarea. The lengths
ofthetransmissionlinesarevalidforthesynchrotronSIS18
wherethesetup iscurrentlytested. ThelengthsforSIS100
may vary.
In order to ensure that the phase relations at the green
line in Fig. 3do not depend on the... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 1 |
9fe4bfda-9991-4e5c-856e-6392d00fd23b | processingdelayintroducedbytheTriggerUnitwithinthe
Longitudinal Feedback System, but those are compensated
locally through the insertion of transmission lines in the
parallel signal paths.PHASE CORRECTIONS FOR THE RF
REFERENCE SIGNALS
Since fixed, frequency-independent phase differences be-
tween𝑢LFDDSA,𝑢LFDDSBand𝑢F... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 1 |
e8bf9f7e-c91c-4758-88c3-b81a60bd23c3 | measurement, they have to refer to the same position in the
ring,inthiscasethepositionoftheFCT 𝜃FCT. Thus,con-
sideringabeamcirculatinginclockwisedirectionandthe
basic description
𝑢DDS(𝑡) =̂𝑉sin(ℎ𝜔R𝑡 −𝜑∗)
for the harmonic reference signals with an optional phase
offset𝜑∗, they have to be shifted according to
𝑢... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 1 |
f1ed4233-300a-49e0-b703-df5c9a407a0d | thenewsynchrotronSIS100thebeamwillcirculatecounter-
clockwise but the main principles do not change.
θFCT
ωRtθref
Figure 4: Diagram indicating the reference position 𝜃reffor
RF reference signals in the ring, the FCT position 𝜃FCTand
a beam circulating in clockwise direction with a revolution
frequency of 𝜔R.17th Int... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 1 |
31cc4486-5887-462a-8e2a-2112a516cdb4 | EXPERIMENTAL VERIFICATION OF THE
DEMULTIPLEXING
The functionality of the demultiplexing of the beam cur-
rent signal independent of the current RF frequency has
been confirmed in a machine experiment with beam in July
2025. Inthisexperiment,theLongitudinalFeedbackSystem
wasusedtodamplongitudinaldipoleoscillationsofindi... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 2 |
3e945035-d3df-46af-897f-e7ff7d421c6b | tionsfortheexperiment,demonstratesthefunctionalityof
thisprocessbyprovidingawaterfalldiagramofademulti-
plexed beam current signal over a whole acceleration cycle.
Inthisplot,regionsofthedemultiplexedsignalcontaining
the beam pulses of a single bunch can easily be separated
from the light blue regions indicating 𝑢FCT=... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 2 |
b5a27ca4-0781-49f5-9f98-69a315a96dd7 | as it distributes corresponding signal parts to dedicated pro-
cessing units. In order to operate the system independent of
the RF frequency, the influence of signal delays had to be
takenintoaccountbyinsertingadditionaltransmissionlines
fordelaycompensation. Furthermore,aphasecorrectionfor
thereferencesignalscontrolli... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 2 |
ac22a716-29bc-49ef-8d2b-efe092f88d7c | uFCT,b2
Figure5: Measurementresultsshowingthesuccessfulde-
multiplexingof a beam current signal during operation with
a harmonic number of ℎ = 2and a synchronous phase of
𝜑R≈ 2.5°.
2
1
0 1 2
t in s
0100200300400500600Segment time t in ms
0.025
0.0000.0250.050
uFCT,b1Figure6: Waterfalldiagramofademultiplexedbeamcurre... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 2 |
da4173e3-027b-4a24-9993-c3419d4cead7 | doi:1/zero.alt4.18429/JACoW-IPAC2/zero.alt415-MOPHA/zero.alt421
[3]D.Lens,H.Klingbeil,“StabilityofLongitudinalBunchLength
FeedbackforHeavy-IonSynchrotrons”, Phys.Rev.STAccel.
Beams, vol. 16, no. 3, March, 2013.
[4]H.Klingbeil, D. Lens,M. Mehler,B. Zipfel,“ModelingLon-
gitudinal Oscillations of Bunched Beams in Synchrot... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 2 |
bf025281-fcea-43db-8bd3-1c781caf5768 | ICALEPCS’09 , Kobe, Japan, Oct. 2009, paper TUC004,
pp. 93–95.
[8]M.Lipiński, T.Włostowski,J.SerranoandP.Alvarez,“White
rabbit: APTPApplicationforRobustSub-NanosecondSyn-
chronization”, in Proc. IEEE ISPCS , Munich, Germany, 2011,
doi:1/zero.alt4.11/zero.alt49/ISPCS.2/zero.alt411.6/zero.alt47/zero.alt414817th Internati... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6113.pdf | 2 |
b77929ac-737c-4f0c-8669-db04f06785e1 | TOWARDS FAST ORBIT CORRECTION: A MODULAR AND EXTENSIBLE
GLOBAL ORBIT FEEDBACK SYSTEM
A. Aljadaa∗, A. Ahmad, A. Abbadi, H. Al-Mohammad, M. Attal, S. Kasaei
SESAME Synchrotron, Allan, Jordan
Abstract
AtSESAME, orbit correction was previouslyperformed
every 5 seconds (0.2 Hz) using MATLAB. However, due to
thelimitedcorrec... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
de9045e7-f7e1-41cc-82b4-cc2d28721cab | system, implemented in C, achieves sampling rates up to
10Hz,enablingcorrectionofhigher-frequencydisturbances
that were previously unaddressable.
The system architecture was designed with modularity
asacoreprinciple,facilitatingeasymodificationandinte-
grationofdifferentcontrolandestimationalgorithms. The
completeecosy... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
175c308a-04b3-49bb-ae92-6536b044f3fc | rection: aC-basedcorecorrectionengine,anEPICSIOC,
and a Qt-based graphical user interface.
Thecorecorrectionengine,implementedinC,executes
the orbit feedback algorithm at a 10 Hz sampling rate. This
componentreads slowacquisition(SA)beam position data
from the Beam Position Monitors (BPMs) electronics (Lib-
era Brillia... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
8ba055fa-71fc-44df-a342-c1e2a89edf20 | setpoints, controller gains, and diagnostic signals.
∗amro.aljadaa@sesame.org.joThe Qt-based graphical user interface provides operators
withcomprehensivesystemvisualizationand controlcapa-
bilities. TheGUIdisplaysliveorbitdatainmultiplerepre-
sentations: time-domainwaveformsfortrackingtransientbe-
havior, frequency-do... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
990e1978-5167-4640-8bbe-43dbef3fbc02 | proachdecomposestheorbitresponsematrixintoorthogonal
eigenmodes, enabling decoupled correction of individual
orbit modes while providing inherent numerical stability.
The fundamental correction equation relates the required
corrector current changes to the measured orbit deviations:
Δ𝐼 = 𝑉 ⋅𝑆inv⋅𝐶𝑧⋅𝑈𝑇⋅Δ𝑥,
where... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
a240d3e8-2e70-4a7d-a9de-22f89923a079 | primarycorrectionmechanism. ChangesinRFfrequency
modulate beam energyto matchthe design energy. RF cor-
rection is applied first to stabilize beam energy, followed by
correctormagnetsforfineorbitadjustment. Thisapproach
reduces the correction load on the magnets and prevents
corrector saturation.
Figure1illustrates the... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
7b54c319-2450-4a08-9065-7d02f0b5a0fa | lectable stateestimationalgorithms, each offering different
tradeoffs between noise rejection and response time.17th International Particle Accelerator Conference, Deauville, France JACoW Publishing
ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6114
MC6.T05: Beam Feedback Systems 2809WEP: Post... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 0 |
fc983092-9df2-4565-a8f0-fe95361f0cc8 | BPMs EstimatorΔI, Δf Feedback
ControllerMachineFeedforward
Controller
Golden Orbit Correctors + RF +-Figure 1: Orbit correction systemarchitecture.
TheMovingAverage(MA)filtercomputesasimplearith-
metic mean over a sliding window of N samples:
̂ 𝑥[𝑘] =1
𝑁𝑁−1
∑
𝑖=0𝑥[𝑘 −𝑖].
This approach provides straightforward n... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 1 |
a1d9168b-390e-4959-a6cd-804a101af124 | characteristics through adjustment of the weighting parame-
ter.
Forapplicationsrequiringoptimalnoise rejection,a dis-
creteKalmanfiltercanbeused,whichprovidestheoretically
optimal estimates when noise statistics are properly charac-
terized.
Themodularsoftwarearchitectureenablesconfigurable
selectionbetweenestimationa... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 1 |
d8abae51-4a9d-43ae-abae-c930a24a58c6 | beneficial.
Feedback Controller
The feedback controller implements a Proportional-
Integral (PI) control law in discrete time. The PI controller
provides both immediate response to orbit errors throughthe proportional term and elimination of steady-state errors
through the integral term. The discrete-time PI controller... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 1 |
f39296ff-2fe2-4ab3-8780-7058a289519e | and noise sensitivity of derivative action is unnecessary.
The gain structure implements a two-level hierarchy to
provide both global and local control authority. Global pro-
portionalandintegralgainsareconfiguredthroughthegraph-
icaluserinterface,providingconvenientadjustmentofthe
overall loop response. Additionally, ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 1 |
02d3d501-9c36-4226-9bcc-e6018ba0d40e | mentsfeedforwardcompensationtopreemptivelycounteract
known disturbance sources. The primary application targets
orbit disturbances induced by insertion devices.
Insertiondevicessuchaswigglersandundulatorsproduce
strong magnetic fields that vary with gap and shift changes.
As users adjust these parameters during experim... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 1 |
233d3bea-8f7d-4358-9edf-e34be7b2da6f | Ratherthanrelyingsolelyonfeedbacktocorrectthesedis-
turbances after they occur, feedforwardtable compensation
applies precalculated corrector adjustmentssimultaneously
with the parameter changes, significantly reducing transient
orbit excursions.
The feedforward implementation employs Python scripts
thatmonitorinsertio... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
cfa9e7d1-4dd7-4af0-a828-29667ad9535e | plifies measurement noise into large corrector demands that
may exceed physical limits or cause instability.
Two approaches are implemented to address this ill-
conditionedinverseproblem. ThefirstemploysSVDtrunca-
tion,wheresingularvaluesbelowaspecifiedthresholdare
entirely excluded from the correction, effectively dis... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
95d4fdbe-863e-4d50-a39b-b34f44a385dd | ofregularization,enablingustoadaptthecorrectionstrategy
to changing operational conditions without recompiling the
core correction engine.
FUTURE WORK
The current implementation operating at 10 Hz sampling
rate represents an intermediate step toward achieving true
FastOrbitFeedback(FOFB)capabilities. Severalenhance-
me... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
461e9f84-870b-4c0a-a49f-f4d5f09986aa | parameter optimization for future FOFB implementations.PreparatoryworktowardsFOFBhasalreadybeencom-
pleted,includingfastBPMdataacquisitionsoftware. The
modulararchitecturesupportsintegrationofFPGAsolutions
for hardware-accelerated computation at higher rates.
The ultimate goal is transition to FOFB operation [ 5]
atsig... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
bb386392-befa-4dae-b2db-8721acfea626 | toaddressthelimitationsofthepreviousMATLAB-based
implementation. The migration to C-based implementation
enabled a 50-foldincrease in sampling rate, from 0.2 Hz to
10Hz,significantlyimprovingthesystem’sabilitytocorrect
higher-frequency orbit disturbances.
Themodularsoftwarearchitectureprovidesplug-and-play
capability f... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
ed9b50eb-9836-4127-a6ef-71d58bb8f2fd | prehensive approach addresses all aspects of orbit feedback
systemoperationfromimplementationthroughcommission-
ing to long-term performance assessment.
The system has been successfully deployed in produc-
tion, demonstrating improved orbit quality. As indicated by
the title, this implementation establishes the foundat... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
b456081c-b2df-42e5-9947-b90d53facf92 | studies during ALBA commissioning”, in Proc. IPAC’11 , San
Sebastián, Spain, Sep. 2011, paper THPC056, pp. 3020–3022.
[4]M.T.Heron etal.,“Diamondlightsourceelectronbeampo-
sition feedback”, in Proc. ICALEPCS’09 , Kobe, Japan, Oct.
2009, paper THB003, pp. 650–652.
[5]J. Chenet al., “Status of SSRF fast orbit feedback sy... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6114.pdf | 2 |
190717b4-26a4-4bd8-848c-1bd80ca14ea5 | AUTOMATED SOFTWARE WORKFLOW FOR ACCELERATOR CONTROL
SYSTEMS USING CONTAINERIZATION
A. Aljadaa∗1, A. Ahmad1, A. Abbadi1, M. Alzubi1,2, R. Khrais1
1SESAME Synchrotron, Allan, Jordan
2Princess Sumaya University for Technology, Amman, Jordan
Abstract
A new software workflow has been developed and de-
ployed at SESAME that ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 0 |
f40f3c03-70a5-4b58-ab12-21ccb661b81d | facilityischallengingduetovarioussourcesoffailure: hard-
warefailuresinserversandnetworks,operatingsystemis-
sues like high CPU and memory usage, and application
issues suchas crashes and memory leaks. Traditionalman-
ual deployment workflows compound these challenges by
introducing human error.
This paper presents an ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 0 |
d8e57c41-add2-49c4-8842-80e4678f9fe2 | containerization, orchestration with Kubernetes, release
management with Helm, and continuous deployment au-
tomation.
Figure1illustrates the workflow, which is discussed in
detail in the following sections.
This workflow has been deployed in production for all
machine IOCs at SESAME Synchrotron Light.
CONTAINERIZATION... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 0 |
9aa5c284-557b-442b-9612-b59c4f157763 | development machineIOC Source + Dockerfile + Helm chartFigure 1: Complete workflow from development to produc-
tion deployment.
ofdeploymentissues. Tooptimizetheseimages,amultilayer
approach is followed when building Docker images. This
modularizesthedevelopmentprocessbycreatingimagesfor
common dependencies, thereby re... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 0 |
e14a7baf-11d6-45b7-96bc-fa15bee074a8 | centralized management of these containers requires orches-
tration.
ORCHESTRATION
TomanageDockerIOCsfromacentralnode,Kubernetes
[3] was selected as the container orchestration tool.
Kubernetes plays a vital role in IOC management, act-
ing as a central manager that provides a global view of
the entire system and aggre... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 0 |
a1056fd3-5e54-4b0f-af0e-d099f25275be | ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6115
2812 MC6.T33: Online Modelling and Software ToolsWEP6115 WEP: Poster session
Content from this work may be used under the terms of the CC BY 4.0 licence (© 2026). Any distribution of this work must maintain attribution to the author(s), title ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 0 |
e6c01579-70ab-4dee-8fb7-7eb2d4c795e3 | rockylinux:8.10
stream-device-ioc caen-ioc s7nodave-ioc
alpineFigure 2: MultilayerDockerimagebuild process.
remotemanagementoverlow-bandwidthconnections,faster
keyboard-driven navigation, real-time cluster monitoring,
and native Helm release management capabilities. Both
tools enable manual IOC control and shell access... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
d1f68eed-589c-428b-ac5d-de4ccefe4ea2 | Kubernetesalsoimprovesserviceavailabilitybyautomat-
ically redeploying the IOCs from failed servers to healthy
ones. IfanIOCfailsduetoanapplicationissue,Kubernetes
automatically restarts the IOC.
Finally, Kubernetes enables resource management by ap-
plying CPU and memory constraints to pods. The Ku-
bernetes scheduler... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
da457b63-f9fe-4523-af89-0df99a394489 | dates and rollbacks through version management, allowing
deployment of IOC instances to the cluster and manage-
mentofmultipleIOCversions. Helm’stemplatingsystem
provides consistency across deployments while allowing
fine-grained customization for individual IOC requirements.
EachHelmreleasemaintainsacompleteversionhis... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
d4594b29-95ae-4714-ab71-8cc044e5ddf5 | tem provides a clear audit trail of all deployment changes,
enabling easy identification of the currently running IOC
version.
AllKubernetesresourcesrequiredtodeployanIOCare
packaged in a Helm chart according to Figure 3. A typi-
cal chart contains severalcomponents organized in a stan-
dardizeddirectorystructure. TheC... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
9327fc6d-c9f9-47f9-bae9-1bf5cb8f2b59 | allowsasinglecharttemplatetobereused acrossdifferent
IOCs by simply modifying the values file, promoting con-
sistency while enabling customization.
The deployment template utilizes Helm’s templating syn-
tax to reference values dynamically. It defines the Kuber-
netes deployment resource with specifications for pod me... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
d520399b-8cfe-4cde-8701-64cab9bc1949 | tentVolumeClaimtemplaterequestsstorageresourcesand
bindstothevolume. Thesearemountedintothecontainerat
theautosavedirectory,ensuringIOCstatepersistenceacross
pod restarts and node failures.
CONTINUOUS DEPLOYMENT
With containerization, orchestration, and package man-
agement established, the final component automates th... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
dfcd307f-8521-478e-a51e-3ee6f32d246e | ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6115
MC6.T33: Online Modelling and Software Tools 2813WEP: Poster session WEP6115
Content from this work may be used under the terms of the CC BY 4.0 licence (© 2026). Any distribution of this work must maintain attribution to the author(s), title ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 1 |
d19936d0-cbcc-4dad-ba07-283bfa1d99f8 | Cleanup artifacts from previous builds
NO
YESCheck git tag
Build new image
Helm package + Update Helm repo
Helm install / upgradeStopFigure 4: Continuous deploymentpipeline.
detected on the latest commit; regular commits without tags
bypassthedeploymentprocess,ensuringcontrolledreleases
to production.
Thedeploymentproc... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 2 |
55340398-198b-4c2a-8fc0-012fe98e2e86 | for new IOCs or an upgrade for existing deployments.This automated pipeline significantly improved deploy-
ment speed across all target machines while eliminating
human errors such as incomplete deployments and inconsis-
tent configurations. Build failures are immediately reported
via email with detailed logs, enabling... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 2 |
ce923d24-9d29-4838-9b8a-21b758c9ea53 | associatedwithmanualworkflows. Thisapproachdemon-
strates the benefits of adopting modern industry-standard
tools in large scientific facilities.
REFERENCES
[1]G. Knap, T. M. Cobb, Y. Moazzam, U. K. Pedersen, and C.
J. Reynolds, “Kubernetes for EPICS IOCs”, in Proc. 18th
Int. Conf. on Accelerator and Large Experimental... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 2 |
205e6f55-7c41-447e-9749-27ef912ba2dc | netes”, https://helm.sh
[6]JenkinsCommunity,“Jenkins”, https://www.jenkins.io17th International Particle Accelerator Conference, Deauville, France JACoW Publishing
ISBN: 978-3-95450-252-3 ISSN: 2673-5350 doi: 10.18429/JACoW-IPAC2026-WEP6115
2814 MC6.T33: Online Modelling and Software ToolsWEP6115 WEP: Poster session
Co... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6115.pdf | 2 |
0a76b173-9cfd-4019-b9f9-92b2fceae9e7 | TUNE COMPENSATION FOR INSERTION DEVICES MOTION AT THE
SOLARIS STORAGE RING
M. Ünal†, R. Panas, A.I. Wawrzyniak, W. Wiatrowska
SOLARIS National Synchrotron Radiation Centre, Krakow, Poland
Abstract
Precise control of betatron tune is essential for
maintaining beam stability in modern synchrotron light
sources. ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 0 |
5df9948f-c65d-4d5b-989c-6c75706b8a01 | parameters (gap, phase) and the corresponding tune shifts.
Prior to table generat ion, the magnets' response matrices
for both tune planes were independently obtained.
INTRODUCTION
The SOLARIS synchrotron operates at 1.5 GeV and
provides light to seven independent beamlines. Three of
them are using APPLE II typ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 0 |
f51e8f8e-6151-4481-926f-c20b13caa980 | APPLE II type undulator with the strongest influence on
tune [2]. The method includes the betatron tune
measurements by exciting coherent transverse oscillations
with dipole kicker (hori zontal) and pinger (vertical)
magnets . Tune s are calculated from turn -by-turn BPM
signals using the FFT analysis .
N... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 0 |
26399e3c-9e52-4683-8db6-1c6b6a074329 | across all undulator gap and phase settings. Finally, using the SVD method, a look- up table was constructed,
containing undulators settings and corresponding
correcting magnets currents.
_____________________________________
†corresponding author: maria.unal@uj.edu.pl
The table was tested in standard operati... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 0 |
f5c11fc9-cb54-4a13-97f7-f2fd201077ce | tune response .
The measurement was performed with the undulator in
the open- gap configuration. Quadrupole currents were
varied in steps of 0.05 A for focusing quadrupoles and
0.03 A for defocusing magnets, with ±10 steps around the
nominal operational value. For each current setting, three
tune measurement... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 0 |
058c7061-95e9-460d-8a5d-a63554700568 | 𝜈𝜈=𝑎𝑎⋅𝐼𝐼+𝑏𝑏 . (1)
Where ν denotes fractional tune value and I the
quadrupole current. The obtained coefficients are
summarized in Table 1. Each m easurement w as repeated
three times per magnet to estimat e statistical uncertainty .
17th International Particle Accelerator Conference, Deauvi... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 0 |
5b25fc1b-cf8d-4615-87f1-10c998df0f62 | Table 1: Tune Response Matrix with Standard Errors
Magnet
type 𝒅𝒅𝝂𝝂𝒚𝒚
𝒅𝒅𝒅𝒅±SE
[10-3 A⁻¹] 𝒅𝒅𝝂𝝂𝒙𝒙
𝒅𝒅𝒅𝒅±SE
[10-3 A⁻¹]
PFS loc. 2.60 ± 0.04 0.9 ± 0.4
SQFO loc. -2.21 ± 0.01 2.50 ± 0.05
PFS 29.3 ± 0.2 -1.5 ± 0.1
SQFO -22.4 ± 0.1 29.5 ± 0.2
Furthermore, disturbance map of vertical and horiz... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 1 |
8dd863fa-ecb4-426c-870d-8a78d30a9dc5 | observed [ 2].
Three repeated measurements were performed for each
gap–phase combination. The mean value and standard
error were calculated , with the relative uncertainty
remaining below 0.4%. In Fig. 2 , the data points are shown
with semi -transparent markers around the mean values,
separately for horizontal... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 1 |
a6cd7266-7677-4d6b-8abe-8e5cb1f5f6c6 | Small singular values below a chosen threshold , equal to
10-3, were removed to improve numerical stability and
reduce noise amplification. The final correction vector is
given by:
Δ𝐼𝐼=𝑉𝑉Σ−1𝑈𝑈𝑇𝑇Δ𝜈𝜈. (3) This expression was applied to the response matrix at
each undulator gap and phase configurat... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 1 |
ad50541a-151c-45de-99fc-170200d7e76c | open -gap configuration is ν x = 0.245 and νy ≈ 0.14, which
was used as the baseline for calculating relative tune variations reported in this study.
The measurement was performed to validate the applied
correction and to visualize the results with (Fig. 3) and
without (Fig. 4) applied correction . The undulator... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 1 |
7493b1d1-72bb-4ee7-b5e3-18cfbb509df1 | peak -to-peak measures. For this reason, standard deviation
is not used as a stability metric in this analysis.
In the horizontal plane, the mean tune shifts from 0.209
(before correction) to 0.2 19 (after correction). This
corresponds to a reduction of the effective tune shift
between operating states by 28%. I... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 1 |
0dcad062-7142-4add-962a-aa63391a0752 | correction could be improved by increasing the limits of
magnets currents, but it leads to a significant reduction in
beam lifetime, reaching up to approximately 2.3 hours.
Solution is a compromise between long -lasting beam and
good tune correction. Additionally, orbit stability was
monitored during correction. ... | D:\Daily_ihep\Conferences\IPAC2026\WEP\WEP6116.pdf | 2 |
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