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Workshop on Accelerator R&D for Ultimate Storage Rings

October 30, 2012 to November 1, 2012
Asia/Shanghai timezone

Contribution List

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14. Welcome
Prof. Yifang Wang (Institute of High Energy Physics, CAS)
10/30/12, 8:30 AM
15. Workshop charge
Dr Qing Qin (Institute of High Energy Physics, CAS)
10/30/12, 8:40 AM
16. Scientific cases for USR
Prof. Hong Ding (Institute of Physics, CAS)
10/30/12, 8:50 AM
17. Highlights of science of USR
Prof. Yuhui Dong (Institute of High Energy Physics, CAS)
10/30/12, 9:05 AM
18. Overview of USR design and performance requirements
Robert Hettel (SLAC NAL)
10/30/12, 9:20 AM
20. MAX-IV project and MBA with higher multipoles
Dr Simon Leemann (MAX IV Laboratory)
10/30/12, 9:35 AM
22. Latest development of ESRF and future plan
Dr Pantaleo Raimondi (ESRF)
10/30/12, 9:55 AM
26. Lattice design for Spring-8 II
Dr Yoshito Shimosaki (JASRI / SPring-8)
10/30/12, 10:15 AM
27. USR upgrade for ALS
Dr Christoph Steier (Lawrence Berkeley National Laboratory)
10/30/12, 10:50 AM
29. Study of lower emittance lattice at SOLEIL
Dr Amor NADJI (SOLEIL)
10/30/12, 11:07 AM
30. BAPS lattice design
Gang Xu (Institute of High Energy Physics, CAS)
10/30/12, 11:24 AM
71. Discussion
10/30/12, 11:44 AM
34. Collective effects in USRs
Karl Bane (SLAC National Accelerator Laboratory)
10/30/12, 1:30 PM
35. Single and multiple Touschek scattering in low emittance rings
Dr Manuela Boscolo (INFN)
10/30/12, 1:50 PM
36. BAPS CSR, impedance and IBS
Ms Na Wang (Institute of High Energy Physics, CAS) , Mr Saike Tian (Institute of High Energy Physics, CAS)
10/30/12, 2:10 PM
37. Propagation of ultra-short bunches in USRs and potential lasing
Robert Hettel (SLAC NAL)
10/30/12, 2:30 PM
38. Optimal RF frequency
Prof. Mikael Eriksson (MAX-lab)
10/30/12, 2:50 PM
52. Discussion
10/30/12, 3:05 PM
42. Some engineering challenges for a USR machine
Dr Lin ZHANG (ESRF)
10/30/12, 3:45 PM
72. Anticipated limits on machine stability and consequences on machine and beamline designs
Mr Jean-Claude DENARD (Synchrotron SOLEIL)
10/30/12, 4:05 PM
43. MAX-IV magnet design
Mr Martin Johansson (MAX IV Laboratory)
10/30/12, 4:25 PM
47. High Gradient Magnet Design
Dr Kouichi Soutome (JASRI/SPring-8)
10/30/12, 4:45 PM
49. Design and fabrication of NSLS-II sextupole
Dr Wen Kang (Institute of High Energy Physics, CAS)
10/30/12, 5:00 PM
50. Design for high precision small aperture magnets for BAPS
Dr Fusan Chen (Institute of High Energy Physics, CAS)
10/30/12, 5:15 PM
51. Discussion
10/30/12, 5:30 PM
13. Compact low emittance lattice including superbends
Lin Liu (Brazilian Synchrotron Light Laboratory)
10/31/12, 8:00 AM
19. PEP-X design
Dr Michael Borland (Argonne National Laboratory)
10/31/12, 8:20 AM
21. Tevatron USR and other topics of USR
Dr Michael Borland (Argonne National Laboratory)
10/31/12, 8:40 AM
23. Overview of optics correction at Diamond and plan for DLS-II
Riccardo Bartolini (Diamond and JAI)
10/31/12, 9:00 AM
24. Round beam experience at BINP
Dr E. Levichev (INP)
10/31/12, 9:20 AM
25. Discussion
10/31/12, 9:37 AM
28. Optimization of dynamic aperture for the ESRF upgrade
Mr Andrea Franchi (ESRF)
10/31/12, 10:30 AM
31. Coupling correction at SLS, minimum vertical emittance
Prof. Leonid Rivkin (Paul Scherrer Institut)
10/31/12, 10:50 AM
32. 2-frequency RF system for short bunches at SPring-8
Mr takahiro fujita (SPring-8)
10/31/12, 11:10 AM
33. Discussion
10/31/12, 11:25 AM
39. Top – up injection
Prof. Leonid Rivkin (Paul Scherrer Institut)
10/31/12, 1:30 PM
40. Injection into low-lifetime USRs
Robert Hettel (SLAC NAL)
10/31/12, 1:50 PM
41. Pulsed sextupole injection for MAX-IV
Dr Simon Leemann (MAX IV Laboratory)
10/31/12, 2:10 PM
44. Pulsed sextupole injection for BAPS
Mr Yi Jiao (Institute of High Energy Physics, CAS)
10/31/12, 2:30 PM
45. Injection scheme for the SPring-8 upgrade
Dr Kouichi Soutome (JASRI/SPring-8)
10/31/12, 2:50 PM
46. On-axis swap-out injection
Dr Michael Borland (Argonne National Laboratory)
10/31/12, 3:10 PM
48. Discussion
10/31/12, 3:30 PM
53. MAX-IV vacuum chamber design
Mrs Eshraq Al-Dmour (Vacuum group coordinator)
10/31/12, 4:15 PM
54. Single non-linear injection kicker magnet
Mr Olaf Dressler (Helmholtz-Zentrum Berlin)
10/31/12, 4:35 PM
55. Fast pulsed power supply for ILC damping ring kicker
Dr Jinhui Chen (Institute of High Energy Physics, CAS)
10/31/12, 4:55 PM
61. Ground vibration for BAPS
Mr Daheng Ji (Institute of High Energy Physics, CAS)
10/31/12, 5:15 PM
64. Discussion
10/31/12, 5:30 PM
56. SOLEIL orbit feedback systems and photon BPMs
Mr Jean-Claude DENARD (Synchrotron SOLEIL)
11/1/12, 8:00 AM
57. Multi-Bunch Feedback System in USR
Mr takahiro fujita (SPring-8)
11/1/12, 8:25 AM
58. Feedback system for USRs
Dr Christoph Steier (Lawrence Berkeley National Laboratory)
11/1/12, 8:45 AM
59. Discussion
11/1/12, 9:05 AM
60. IDs for the ESRF upgrade
Dr Joel CHAVANNE (European Synchrotron Radiation Facility)
11/1/12, 9:35 AM
62. Superconducting IDs at BINP
Dr Konstantin Zolotarev
11/1/12, 9:55 AM
63. IDs for Shanghai Synchrotron Radiation Facility
Dr Qiaogen Zhou (Shanghai Institute of Applied Physics, CAS)
11/1/12, 10:30 AM
65. PETRA-III damping wiggler experience
Mr Alexander Kling (DESY Hamburg)
11/1/12, 10:50 AM
66. Undulator technology for USR
Mr Mark Jaski (Argonne National Laboratory)
11/1/12, 11:10 AM
67. Cryogenic permanent magnet and superconducting small period undulators
Dr Johannes Bahrdt (Helmholtz-Zentrum Berlin)
11/1/12, 11:30 AM
68. Discussion
11/1/12, 11:50 AM
69. Report writing
11/1/12, 1:30 PM
70. Summary
11/1/12, 2:25 PM
10. A 5BA low emittance lattice with superbends for Sirius
Lin Liu (Brazilian Synchrotron Light Laboratory)
We present the lattice design issues of the new Brazilian synchrotron light source (Sirius) currently under construction at the Brazilian Synchrotron Light Laboratory (LNLS) in Campinas. The Sirius lattice was recently revised to achieve a lower emittance. The new design is based on a 3 GeV, 5BA achromatic lattice with 0.28 nm.rad natural emittance without wigglers. The circumference is 518 m...
9. Anticipated limits on machine stability and consequences on machine and beamline designs
Mr Jean-Claude DENARD (Synchrotron SOLEIL)
With the small emittance the future USRs will provide, the beam stability is going to be more and more a critical issue. I will compare a ±sigma/10 position stability tolerance for a 30 keV diffraction limited photon beam to the actual beam stability of an existing light source. The future USRs might or not achieve a better stability. We will see that for acquisition times from 10 ms to about...
82. BAPS Lattice Design
gang xu (ihep)
The USR is one of the choices for Beijing Advanced Photonic Source(BAPS). The goal of the lattice design is approaching diffraction limit for 10keV X-ray. In the talk we will show several resluts of lattice design, parameters of damping wiggler, method of making round beam, process of chromaticity correction and tracking results of dynamic aperture.
73. Development and Commissioning of a Single Non-linear Kicker Magnet System for the BESSY II Storage Ring Injection
Mr Olaf Dressler (Helmholtz-Zentrum Berlin)
Top-Up injections without noticeable motion of the stored beam is a challenge. The common method of beam accumulation with a local bump formed by four independent pulsed dipole kicker magnets usually causes beam oscillations. The matching of the four independent kicker systems regarding pulse jitters and shapes is technologically limited. Powering neighboring kicker magnets in pairs reduces...
12. Experience with Damping Wigglers at PETRA III
Mr Alexander Kling (DESY Hamburg)
PETRA III is a third generation light source which started operation in 2009. Twenty damping wigglers are installed in dispersion free straight sections in order to achieve a horizontal emittance of 1nmrad. We give a short overview of design considerations and beam dynamics issues and report on experience from commissioning and user operation.
79. Lattice design for Spring-8 II
Dr Yoshito Shimosaki (JASRI / SPring-8)
A feasibility of a very low-emittance storage ring has been studied for an upgrade project of the SPring-8, SPring-8 II. Its ultimate goal is to provide a superior brilliance for 0.5 ~ 100 keV photons. A sextuple bend achromat lattice with the natural emittance of 70 pmrad at 6 GeV has been examined as the first candidate. In order to increase the brilliance and to enlarge the dynamic...
77. MAX IV vacuum System design
Eshraq Al-Dmour (Vacuum group coordinator)
The fact that the 3 GeV storage ring of MAX IV has a compact lattice and small aperture for the magnets makes the vacuum system a challenge in all stages, from design to installation and commissioning. The talk will cover the considerations for the vacuum system together with the layout. The design of the copper vacuum chambers, NEG coating and production issues are presented.
81. Multi-bunch feedback system in USR
Mr takahiro fujita (SPring-8)
In ultra-low emittance ring for light source, hybrid filling of bunches and narrow gap undulators would contribute transverse instability. Under the hybrid filling, isolated bunch with high current and bunch train with high average current would be stored simultaneously. Mode coupling single bunch instability and multi-bunch instability due to resistive wall impedance must be suppressed by...
7. Pulsed Sextupole Injection for BAPS
Mr yi jiao (IHEP)
We will introduce the design of the pulsed sextupole injection for BAPS.
75. Single and Multiple Touschek scattering in low emittance rings
Dr Manuela Boscolo (INFN)
A quick overview on the intra-beam scattering theory and conventional computations will be presented, as well as for the Touschek effect. A parallelized tracking code for the IBS has been recently developed in view of the SuperB project; benchmarking with measurements (at SLS), with theory and with other codes (SIRE-CLIC-DR) have been done. Touschek lifetime is evaluated in most 3rd generation...
8. SOLEIL orbit feedback systems and photon BPMs
Mr Jean-Claude DENARD (Synchrotron SOLEIL)
A global orbit correction system based on two feedback loops, slow and fast, stabilizes the photon beam to the submicron level at the SOLEIL light source. Having two systems, each one using a different set of correctors is advantageous for performance and cost. The recent addition of dipole frontend XBPMs into the fast loop improves the stability of the bending magnet beamlines. A similar...
11. Some engineering considerations for USR light sources
Dr Lin ZHANG (ESRF)
Various projects of storage ring based light source under construction, and upgrade program of existing 3rd generation light sources are pushing the emittance lower and lower. Diffraction limited emittance in vertical direction is achieving in a number of light sources. Diffraction limited emittance in horizontal direction is ultimate performance for storage ring based light source – USR....
76. Superconducting IDs at BINP
Dr Konstantin Zolotarev (BINP)
Superconducting wigglers are very popular devices for generation of synchrotron radiation (SR) in the hard X-ray spectral range. Moreover, recently superconductive wigglers have also been used for emittance reduction in a few projects of light sources and damping rings of linear colliders. Budker Institute of Nuclear Physics (BINP) has great experience in the design and fabrication of...
80. Two-frequency RF system for short bunches for SPring-8 II
Mr takahiro fujita (SPring-8)
Harmonic RF system for SPring-8 II will be presented. The frequency of the harmonic would be half-integer multiple of fundamental RF. This RF system lengthen most of bunches in order to suppress emittance growth and lifetime decrease due to Intra-beam scattering. With this harmonic RF system, short-bunch is also available.
78. Undulator Technology for Ultimate Storage Rings (USRs)*
Mr Mark Jaski (Argonne National Laboratory)
M. Jaski, R. Dejus, C. Doose, J. Grimmer, Y. Ivanyushenkov, Y. Jaski, M. Kasa, S. Kim, E. Moog, I. Vasserman, J. Wang, M. Borland, E. Gluskin, Advanced Photon Source, Argonne, IL 60439, U.S.A. Abstract One of the limitations on tuning range, brightness, and flux from undulators in storage rings is the extreme x-ray power and power density. It is difficult to engineer photon shutters and...
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