Studies of Transverse Phase Space Painting for the CSNS RCS Injection

QIU Jing; TANG Jing-Yu; WANG Sheng; WEI Jie

Chinese Physics C> 2007, Vol. 31> Issue(10) : 942-946

Studies of Transverse Phase Space Painting for the CSNS RCS Injection

Institute of High Energy Physics, CAS, Beijing 100049, China2 Brookhaven National Laboratory, Upton, NY 11973, USA3 Graduate University of Chinese Academy of Sciences, CAS, Beijing 100049, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The China Spallation Neutron Source (CSNS) accelerators consist of an 80MeV proton linac, and a 1.6GeV rapid cycling synchrotron. The ring accumulates 1.88×10¹³ protons via H^－ stripping injection in the phase CSNS-Ⅰ. The injected beam is painted into a large transverse phase space to alleviate space-charge effects. The uniformity of the beam emittance after the injection is important in reducing the tune shift/spread due to the space-charge effects. The paper introduces three parameters to evaluate the uniformity of a beam distribution. To control emittance growth and reduce halo generation, different painting schemes have been compared by using the 3D simulation code ORBIT. The detailed studies on painting schemes and the dependence on the lattice tune, the injection peak current, and chopping rate are also presented.

References

[1]

. CSNS Accelerator Team. Conceptual Design on Chinese Spallation Neutron Source -Accelerators, 2004. IHEP-CSNS-Report/2004-01E(in Chinese) (CSNS加速器项目组.中国散裂中子源(CSNS)概念设计-加速器方案设计与关键技术研究，2004. IHEP-CSNS-Report/2004-01)2. WANG S, QIN Q, TANG J Y et al. HEP NP, 2006,30(Supp.I): 123-125(in Chinese) (王生，秦庆，唐靖宇等.高能物理与核物理,2006,(增刊I)123-125)3. TANG J Y et al. HEP NP, 2006, 30(12): 1184(in Chinese) (唐靖宇等.高能物理与核物理，2006, 30(12): 1184)4. Galambos J D et al. ORBIT User Manual Version 1.10,July 1999

[1]	Hong-Fei Ji , Yi Jiao , Ming-Yang Huang , Shou-Yan Xu , Na Wang , Sheng Wang . Optimization of the collimation system for CSNS/RCS with the robust conjugate direction search algorithm. Chinese Physics C, 2016, 40(9): 097006. doi: 10.1088/1674-1137/40/9/097006
[2]	YUAN Yao-Shuo , WANG Na , XU Shou-Yan , YUAN Yue , WANG Sheng . Theoretical study of a dual harmonic system and its application to the CSNS/RCS. Chinese Physics C, 2015, 39(12): 127002. doi: 10.1088/1674-1137/39/12/127002
[3]	LI Xiao , SUN Hong , LONG Wei , ZHAO Fa-Cheng , ZHANG Chun-Lin . Design and performance of the LLRF system for CSNS/RCS. Chinese Physics C, 2015, 39(2): 027002. doi: 10.1088/1674-1137/39/2/027002
[4]	YUAN Yao-Shuo , LI Kai-Wei , WANG Na , Yoshiro Irie , WANG Sheng . Study of the beam loading effect in the CSNS/RCS. Chinese Physics C, 2015, 39(4): 047003. doi: 10.1088/1674-1137/39/4/047003
[5]	LIU Ren-Hong , ZHANG Jun-Song , QU Hua-Min , KANG Ling , WANG Mo-Tuo , WANG Guang-Yuan , WANG Hai-Jing . Vibration research of the AC dipole-girder system for CSNS/RCS. Chinese Physics C, 2014, 38(6): 067005. doi: 10.1088/1674-1137/38/6/067005
[6]	XU Shou-Yan , WANG Sheng , AN Yu-Wen , LI Zhi-Ping . Study on the effects of chromaticity and magnetic field tracking errors at CSNS/RCS. Chinese Physics C, 2014, 38(11): 117003. doi: 10.1088/1674-1137/38/11/117003
[7]	HUANG Ming-Yang , WANG Sheng , QIU Jing , WANG Na , XU Shou-Yan . Effects of injection beam parameters and foil scattering for CSNS/RCS. Chinese Physics C, 2013, 37(6): 067001. doi: 10.1088/1674-1137/37/6/067001
[8]	AN Yu-Wen , WANG Sheng . Study on application of independent component analysis in the CSNS/RCS. Chinese Physics C, 2013, 37(3): 037006. doi: 10.1088/1674-1137/37/3/037006
[9]	ZOU Yi-Qing , WANG Na , KANG Ling , QU Hua-Min , HE Zhe-Xi , YU Jie-Bing . Thermal analysis and cooling structure design of the primary collimator in CSNS/RCS. Chinese Physics C, 2013, 37(5): 057004. doi: 10.1088/1674-1137/37/5/057004
[10]	YANG Xiao-Yu , XU Tao-Guang , FU Shi-Nian , ZENG Lei , BIAN Xiao-Juan . Classical and modern power spectrum estimation for tune measurement in CSNS RCS. Chinese Physics C, 2013, 37(11): 117003. doi: 10.1088/1674-1137/37/11/117003
[11]	LIU Ren-Hong , QU Hua-Min , KANG Ling , ZHANG Jun-Song , WANG Hai-Jing . Modal analysis of AC quadrupole magnet system for CSNS/RCS. Chinese Physics C, 2013, 37(8): 087002. doi: 10.1088/1674-1137/37/8/087002
[12]	YANG Xiao-Yu , XU Tao-Guang , FU Shi-Nian , LIU Yu-Dong , LI Yong , ZHAO Ya-Liang . Design of a stripline kicker for tune measurementin CSNS RCS. Chinese Physics C, 2012, 36(7): 666-669. doi: 10.1088/1674-1137/36/7/017
[13]	SONG Jin-Xing , KANG Wen , HUO Li-Hua , HAO Yao-Dou , WANG Lei . The eddy current induced in the pulsed bump magnet for the CSNS/RCS injection. Chinese Physics C, 2011, 35(8): 778-783. doi: 10.1088/1674-1137/35/8/015
[14]	XU Shou-Yan , WANG Sheng . Study on space charge effects of the CSNS/RCS. Chinese Physics C, 2011, 35(12): 1152-1158. doi: 10.1088/1674-1137/35/12/014
[15]	WEI Tao , WANG Sheng , QIU Jing , TANG Jing-Yu , QIN Qing . Beam-loss driven injection optimization for CSNS/RCS. Chinese Physics C, 2010, 34(2): 218-223. doi: 10.1088/1674-1137/34/2/012
[16]	WEI Tao , WU Qing-Biao , LI Wen-Qian . Beam collimation for CSNS/RCS. Chinese Physics C, 2010, 34(4): 506-511. doi: 10.1088/1674-1137/34/4/018
[17]	LIU Lin , TANG Jing-Yu , QIU Jing , WEI Tao . Longitudinal RF capture and acceleration simulation in CSNS RCS. Chinese Physics C, 2009, 33(S2): 4-7. doi: 10.1088/1674-1137/33/S2/002
[18]	WEI Tao , FU Shi-Nian , QIN Qing , TANG Jing-Yu . RF trapping and acceleration in CSNS/RCS. Chinese Physics C, 2008, 32(6): 437-441. doi: 10.1088/1674-1137/32/6/005
[19]	SHEN Li , CHI Yun-Long , HUANG Chuan , TANG Jing-Yu . Design of Injection Painting Bumper Magnets Pulse Power Supply for CSNS/RCS. Chinese Physics C, 2008, 32(S1): 22-24.
[20]	TANG Jing-Yu , QIU Jing , WANG Sheng , WEI Jie . Physics Design and Study of the BSNS RCS Injection System. Chinese Physics C, 2006, 30(12): 1184-1189.

Access

Get Citation

QIU Jing, TANG Jing-Yu, WANG Sheng and WEI Jie. Studies of Transverse Phase Space Painting for the CSNS RCS Injection[J]. Chinese Physics C, 2007, 31(10): 942-946.

QIU Jing, TANG Jing-Yu, WANG Sheng and WEI Jie. Studies of Transverse Phase Space Painting for the CSNS RCS Injection[J]. Chinese Physics C, 2007, 31(10): 942-946. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-11-23
Revised: 2006-12-14

Article Metric

Article Views(2960)
PDF Downloads(694)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Studies of Transverse Phase Space Painting for the CSNS RCS Injection

Corresponding author: TANG Jing-Yu,

Institute of High Energy Physics, CAS, Beijing 100049, China2 Brookhaven National Laboratory, Upton, NY 11973, USA3 Graduate University of Chinese Academy of Sciences, CAS, Beijing 100049, China

Received Date: 2006-11-23

Accepted Date: 2006-12-14

Available Online: 2007-10-05

Abstract: The China Spallation Neutron Source (CSNS) accelerators consist of an 80MeV proton linac, and a 1.6GeV rapid cycling synchrotron. The ring accumulates 1.88×10¹³ protons via H^－ stripping injection in the phase CSNS-Ⅰ. The injected beam is painted into a large transverse phase space to alleviate space-charge effects. The uniformity of the beam emittance after the injection is important in reducing the tune shift/spread due to the space-charge effects. The paper introduces three parameters to evaluate the uniformity of a beam distribution. To control emittance growth and reduce halo generation, different painting schemes have been compared by using the 3D simulation code ORBIT. The detailed studies on painting schemes and the dependence on the lattice tune, the injection peak current, and chopping rate are also presented.

HTML

Reference (1)

Studies of Transverse Phase Space Painting for the CSNS RCS Injection

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article