Effects of injection beam parameters and foil scattering for CSNS/RCS

The China Spallation Neutron Source （CSNS） uses H- stripping and phase space painting metnocl co fill a large ring acceptance with a small emittance linac beam. The dependence of the painting beam on the injection beam parameters was studied for the Rapid Cycling Synchrotron （RCS）. The simulation st...

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Published inChinese physics C Vol. 37; no. 6; pp. 77 - 82
Main Author 黄明阳 王生 邱静 王娜 许守彦
Format Journal Article
LanguageEnglish
Published 01.06.2013
Subjects
Beams (radiation)
Emittance
Foils
Linear accelerators
RCS
Scattering
Simulation
Spreads
Stripping
匹配条件
同步加速器
散射
散裂中子源
汽提效率
直线加速器
相互作用
Online AccessGet full text
ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/37/6/067001

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Abstract The China Spallation Neutron Source （CSNS） uses H- stripping and phase space painting metnocl co fill a large ring acceptance with a small emittance linac beam. The dependence of the painting beam on the injection beam parameters was studied for the Rapid Cycling Synchrotron （RCS）. The simulation study was done for injection with different momentum spreads, different rms emittances of the injection beam, and different matching conditions. Then, the beam loss, 99% and rms emittances were obtained, and the optimized injection beam parameters were given. The interaction between H- beam and stripping foil was studied, and the effect of foil scattering was simulated. The stripping efficiency was calculated and the suitable thickness of stripping foil was obtained. In addition, the energy deposition on the foil and the beam loss due to the foil scattering were also studied.
AbstractList The China Spallation Neutron Source (CSNS) uses H super(-) stripping and phase space painting method to fill a large ring acceptance with a small emittance linac beam. The dependence of the painting beam on the injection beam parameters was studied for the Rapid Cycling Synchrotron (RCS). The simulation study was done for injection with different momentum spreads, different rms emittances of the injection beam, and different matching conditions. Then, the beam loss, 99% and rms emittances were obtained, and the optimized injection beam parameters were given. The interaction between H super(-) beam and stripping foil was studied, and the effect of foil scattering was simulated. The stripping efficiency was calculated and the suitable thickness of stripping foil was obtained. In addition, the energy deposition on the foil and the beam loss due to the foil scattering were also studied.
The China Spallation Neutron Source （CSNS） uses H- stripping and phase space painting metnocl co fill a large ring acceptance with a small emittance linac beam. The dependence of the painting beam on the injection beam parameters was studied for the Rapid Cycling Synchrotron （RCS）. The simulation study was done for injection with different momentum spreads, different rms emittances of the injection beam, and different matching conditions. Then, the beam loss, 99% and rms emittances were obtained, and the optimized injection beam parameters were given. The interaction between H- beam and stripping foil was studied, and the effect of foil scattering was simulated. The stripping efficiency was calculated and the suitable thickness of stripping foil was obtained. In addition, the energy deposition on the foil and the beam loss due to the foil scattering were also studied.
Author 黄明阳 王生 邱静 王娜 许守彦
AuthorAffiliation Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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CitedBy_id crossref_primary_10_1103_PhysRevAccelBeams_26_104201
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Cites_doi 10.1103/PhysRevA.43.1345
10.1016/j.nima.2008.02.060
10.1088/1674-1137/34/2/012
10.1103/PhysRevA.53.3201
10.1103/PhysRevSTAB.14.072801
10.1103/PhysRevSTAB.15.011002
10.4077/CJP.2009.AMG085
10.1109/TNS.1979.4330681
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Notes HUANG Ming-Yang WANG Sheng QIU Jing WANG Na XU Shou-Yan（ Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China）
11-5641/O4
CSNS, RCS, injection parameter, foil scattering
The China Spallation Neutron Source （CSNS） uses H- stripping and phase space painting metnocl co fill a large ring acceptance with a small emittance linac beam. The dependence of the painting beam on the injection beam parameters was studied for the Rapid Cycling Synchrotron （RCS）. The simulation study was done for injection with different momentum spreads, different rms emittances of the injection beam, and different matching conditions. Then, the beam loss, 99% and rms emittances were obtained, and the optimized injection beam parameters were given. The interaction between H- beam and stripping foil was studied, and the effect of foil scattering was simulated. The stripping efficiency was calculated and the suitable thickness of stripping foil was obtained. In addition, the energy deposition on the foil and the beam loss due to the foil scattering were also studied.
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Snippet The China Spallation Neutron Source （CSNS） uses H- stripping and phase space painting metnocl co fill a large ring acceptance with a small emittance linac...
The China Spallation Neutron Source (CSNS) uses H super(-) stripping and phase space painting method to fill a large ring acceptance with a small emittance...
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SubjectTerms Beams (radiation)
Emittance
Foils
Linear accelerators
RCS
Scattering
Simulation
Spreads
Stripping
匹配条件
同步加速器
散射
散裂中子源
汽提效率
直线加速器
相互作用
Title Effects of injection beam parameters and foil scattering for CSNS/RCS
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