Mismatch study of C-ADS main linac

MENG Cai; TANG Jing-Yu; PEI Shi-Lun; YAN Fang

doi:10.1088/1674-1137/39/9/097002

Chinese Physics C> 2015, Vol. 39> Issue(9) : 097002 DOI: 10.1088/1674-1137/39/9/097002

Mismatch study of C-ADS main linac

Abstract
HTML
Reference
Related

PDF

Abstract：
The ADS accelerator in China is a Continuous-Wave (CW) proton linac with 1.5 GeV beam energy, 10 mA beam current, and 15 MW beam power. To meet the extremely low beam loss rate and high reliability requirements, it is very important to study the beam halo caused by beam mismatch, which is one major sources of beam loss. To avoid envelope instability, the phase advances per period are all smaller than 90 degrees in the main linac design. In this paper, simulation results of the emittance growth and the envelope oscillations caused by mismatch in the main linac section are presented. To meet the emittance growth requirement, the transverse and longitudinal mismatch factors should be smaller than 0.4 and 0.3, respectively.

References

[1]

LI Z H, CHENG P, GENG H P et al. Phys. Rev. ST Accel. Beams, 2013, 16: 080101[2] MENG C, LI Z H, TANG J Y et al. Error Analysis and Beam Loss Control in the C-ADS Main Linac. In: Proceedings of IPAC2013. Shanghai, 2013. 3866-3868[3] Reiser M. Theory and Design of Charged Particle Beams. New York: John Wiley Sons. Inc., 1994. 240-250[4] TANG J Y. Nuclear Instruments and Methods in Physics Research A, 2008, 595: 561-567[5] Pabst M, Bongardt K. FZJ et al. Progress on Intense Proton Beam Dynamics and Halo Formation. In: Proceedings of 6th European Particle Accelerator Conference. Sweden: 1998. 146[6] Gerigk F. Space Charge and Beam Halos in Proton Linacs. In: Proceedings of Joint US-CERN-JAPAN-RUSSIA Particle Accelerator School. California: 2002

[1]	Xue-Fang Huang , Yi Sun , Guang-Wei Wang , Shao-Zhe Wang , Xiang Zheng , Qun-Yao Wang , Rong Liu , Hai-Ying Lin , Mu-Yuan Wang . Measurement of the transfer function for a spoke cavity of C-ADS Injector I. Chinese Physics C, 2017, 41(4): 047001. doi: 10.1088/1674-1137/41/4/047001
[2]	Kui-Xiang Gu , Feng Bing , Wei-Min Pan , Tong-Ming Huang , Qiang Ma , Fan-Bo Meng . Development of fundamental power coupler for C-ADS superconducting elliptical cavities. Chinese Physics C, 2017, 41(6): 067001. doi: 10.1088/1674-1137/41/6/067001
[3]	Yong Zhang , Jun-Xia Wu , Guang-Yu Zhu , Huan Jia , Zong-Heng Xue , Hai Zheng , Hong-Ming Xie , Xin-Cai Kang , Yuan He , Lin Li , Jean Claude Denard . Capacitive beam position monitors for the low-β beam of the Chinese ADS proton linac. Chinese Physics C, 2016, 40(2): 027003. doi: 10.1088/1674-1137/40/2/027003
[4]	Wei-Long Chen , Zhi-Jun Wang , Chi Feng , Wei-Ping Dou , Yue Tao , Huan Jia , Wang-Sheng Wang , Shu-Hui Liu , Yuan He . Beam-based calibrations of the BPM offset at C-ADS Injector Ⅱ. Chinese Physics C, 2016, 40(7): 077003. doi: 10.1088/1674-1137/40/7/077003
[5]	Na Liu , Yi Sun , Guang-Wei Wang , Zheng-Hui Mi , Hai-Ying Lin , Qun-Yao Wang , Rong Liu , Xin-Peng Ma . Tuner control system of Spoke012 SRF cavity for C-ADS injector I. Chinese Physics C, 2016, 40(9): 097001. doi: 10.1088/1674-1137/40/9/097001
[6]	Zheng Gao , Yuan He , Xian-Wu Wang , Wei Chang , Rui-Feng Zhang , Zheng-Long Zhu , Sheng-Hu Zhang , Qi Chen , Tom Powers . Study on transient beam loading compensation for China ADS proton linac injector Ⅱ. Chinese Physics C, 2016, 40(5): 057005. doi: 10.1088/1674-1137/40/5/057005
[7]	Zhou Xue , Jian-Ping Dai , Cai Meng . A new method for compensation and rematch of cavity failure in the C-ADS linac. Chinese Physics C, 2016, 40(6): 067003. doi: 10.1088/1674-1137/40/6/067003
[8]	SUN Biao , YAN Fang , PEI Shi-Lun , MENG Cai , TANG Jing-Yu . Compensation-rematch for the major components of C-ADS injector-I. Chinese Physics C, 2015, 39(11): 117003. doi: 10.1088/1674-1137/39/11/117003
[9]	SHI Ai-Min , SUN Lie-Peng , ZHANG Zhou-Li , XU Xian-Bo , SHI Long-Bo , LI Chen-Xing , WANG Wen-Bin . Design of the new couplers for C-ADS RFQ. Chinese Physics C, 2015, 39(4): 047004. doi: 10.1088/1674-1137/39/4/047004
[10]	ZHU Hong-Yan , DONG Lan , LI Bo . Design and simulation of a wire position monitor for cryogenicsystems in an ADS linac. Chinese Physics C, 2014, 38(8): 087001. doi: 10.1088/1674-1137/38/8/087001
[11]	WANG Yi-Wei , SCHULTE Daniel , GAO Jie . Main linac lattice design and optimization for E_cm=1 TeV CLIC. Chinese Physics C, 2014, 38(6): 067009. doi: 10.1088/1674-1137/38/6/067009
[12]	MENG Cai , LI Zhi-Hui , TANG Jing-Yu . Error analysis and lattice improvement for the C-ADS Injector-Ⅰ. Chinese Physics C, 2014, 38(6): 067008. doi: 10.1088/1674-1137/38/6/067008
[13]	REN Guang-Yi , ZENG Ming , HE Yuan , LI Yu-Xiong , LI Wei-Min . Study on the selection of BLM detector for C-ADS Injector Ⅱ. Chinese Physics C, 2014, 38(11): 117004. doi: 10.1088/1674-1137/38/11/117004
[14]	WANG Jing , HUANG Jian-Long , HE Yuan , ZHANG Xiao-Qi , ZHANG Zhou-Li , SHI Ai-Min . Multi-physics analysis of the RFQ for Injector Scheme Ⅱ of C-ADS driver linac. Chinese Physics C, 2014, 38(10): 107005. doi: 10.1088/1674-1137/38/10/107005
[15]	YAN Fang , LI Zhi-Hui , MENG Cai , TANG Jing-Yu , SUN Biao . Physics design for the C-ADS main linac based on two different injector design schemes. Chinese Physics C, 2014, 38(2): 027004. doi: 10.1088/1674-1137/38/2/027004
[16]	WANG Zhi-Jun , HE Yuan , WANG Wang-Sheng , LIU Shu-Hui , JIA Huan , LI Chao , XU Xian-Bo , CHEN Xi-Meng . End-to-end simulation of the C-ADS Injector Ⅱ with a 3-D field map. Chinese Physics C, 2013, 37(4): 047003. doi: 10.1088/1674-1137/37/4/047003
[17]	WANG Xiang-Qi , LUO Huan-Li , HAO Hao , TANG Jing-Yu , LI Wei-Min , XU Hong-Liang . Design of proton beam optics to realize beam distribution transformation in C-ADS HTBT. Chinese Physics C, 2013, 37(2): 027004. doi: 10.1088/1674-1137/37/2/027004
[18]	LI Zhi-Hui , TANG Jing-Yu , YAN Fang , GENG Hui-Ping , MENG Cai , SUN Biao , CHENG Peng , GUO Zhen , SUN Ji-Lei . Longitudinal instability caused by long drifts in the C-ADS injector-Ⅰ. Chinese Physics C, 2013, 37(3): 037005. doi: 10.1088/1674-1137/37/3/037005
[19]	WANG Dou , GAO Jie . Single-bunch emittance dilution in the perfect ILC main linac. Chinese Physics C, 2011, 35(3): 296-300. doi: 10.1088/1674-1137/35/3/016
[20]	WANG Dou , GAO Jie . Effects of machine errors on the ILC main linac. Chinese Physics C, 2011, 35(6): 585-589. doi: 10.1088/1674-1137/35/6/015

Access

Get Citation

MENG Cai, TANG Jing-Yu, PEI Shi-Lun and YAN Fang. Mismatch study of C-ADS main linac[J]. Chinese Physics C, 2015, 39(9): 097002. doi: 10.1088/1674-1137/39/9/097002

MENG Cai, TANG Jing-Yu, PEI Shi-Lun and YAN Fang. Mismatch study of C-ADS main linac[J]. Chinese Physics C, 2015, 39(9): 097002. doi: 10.1088/1674-1137/39/9/097002 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2014-12-01
Revised: 2015-03-27

Article Metric

Article Views(1769)
PDF Downloads(122)
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

Mismatch study of C-ADS main linac

Corresponding author: MENG Cai,

Received Date: 2014-12-01

Accepted Date: 2015-03-27

Available Online: 2015-09-05

Abstract: The ADS accelerator in China is a Continuous-Wave (CW) proton linac with 1.5 GeV beam energy, 10 mA beam current, and 15 MW beam power. To meet the extremely low beam loss rate and high reliability requirements, it is very important to study the beam halo caused by beam mismatch, which is one major sources of beam loss. To avoid envelope instability, the phase advances per period are all smaller than 90 degrees in the main linac design. In this paper, simulation results of the emittance growth and the envelope oscillations caused by mismatch in the main linac section are presented. To meet the emittance growth requirement, the transverse and longitudinal mismatch factors should be smaller than 0.4 and 0.3, respectively.

HTML

Reference (1)

Mismatch study of C-ADS main linac

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article