| Paper |
Title |
Page |
| MOPGW010 |
First Application of Online Particle Swarm Optimization at SOLEIL |
82 |
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- A. Bence, L.S. Nadolski
SOLEIL, Gif-sur-Yvette, France
- J. Li
HZB, Berlin, Germany
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First attempts of online optimisation of SOLEIL using Particle Swarm Optimisation (PSO) is reported with two major applications. This technique proves to be particularly suitable in a control room and could become a standard operation tool for tuning the accelerators in complement of other techniques. The first optimisation of the injection in the storage ring will be presented using the injection septa and the vertical correctors of the booster to storage ring transfer line. The second work will summarise the results obtained from the optimisation of the transverse on- and off-momentum dynamics in presence of insertion devices. Main results, the implementation and improvements will be presented and discussed thoroughly.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-MOPGW010
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| About • |
paper received ※ 19 May 2019 paper accepted ※ 23 May 2019 issue date ※ 21 June 2019 |
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| MOPGW021 |
Symplectic Tracking for the Robinson Wiggler |
120 |
| |
- J. Li, J. Feikes, T. Mertens, Y. Petenev, M. Ries, A. Schälicke
HZB, Berlin, Germany
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A Robinson wiggler (RW) is considered to be installed in the Metrology Light Source (MLS) to lengthen the bunch and improve the Touschek lifetime by manipulating the damping partitions. Symplectic tracking is crucial to study the impact of the nonlinear field components introduced by the Robinson wiggler. This paper introduces a tracking method based on an implicit symplectic integrator to solve the exact Hamiltonian equations of particle motion in the wiggler. In addition, a numerical generating function method is implemented as an approach to realize fast tracking.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-MOPGW021
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|
| About • |
paper received ※ 14 May 2019 paper accepted ※ 20 May 2019 issue date ※ 21 June 2019 |
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| THYYPLM2 |
Two Orbit Operation at Bessy II - During a User Test Week |
3419 |
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- P. Goslawski, F. Andreas, F. Armborst, T. Atkinson, J. Feikes, A. Jankowiak, J. Li, T. Mertens, M. Ries, A. Schälicke, G. Schiwietz, G. Wüstefeld
HZB, Berlin, Germany
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Operating a storage ring close to a horizontal resonance and manipulating the transverse non-linear beam dynamics can generate stable Transverse Resonance Island Buckets (TRIBs), which give a 2nd stable orbit in the ring. Both orbits can be populated with different electron bunch filling patterns and provide two different radiation sources to the user community. Such a machine setting has been established at BESSY II and was tested under realistic user conditions in a first ’TRIBs/Two Orbit User Test Week’ in February 2018. Results and user feedback will be discussed in this contribution.
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Slides THYYPLM2 [64.754 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2019-THYYPLM2
|
|
| About • |
paper received ※ 14 May 2019 paper accepted ※ 24 May 2019 issue date ※ 21 June 2019 |
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