Preliminary study of the higher-harmoni ccavity for HLS-Ⅱ

WU Cong-Feng; FAN Hao; WANG Lin; LIU Guang-Chao; FENG Guang-Yao; LI Wei-Min

doi:10.1088/1674-1137/36/9/017

Chinese Physics C> 2012, Vol. 36> Issue(9) : 891-894 DOI: 10.1088/1674-1137/36/9/017

Preliminary study of the higher-harmoni ccavity for HLS-Ⅱ

Abstract
HTML
Reference
Related

PDF

Abstract：
A higher-harmonic cavity will be used to increase the beam lifetime and suppress coupled-bunch instabilities for Hefei Light Source-Ⅱ. In this paper, results simulated by the particle-tracking model confirm that tuning in the harmonic cavity may suppress the parasitic coupled-bunch instabilities. The factors calculated for lifetime improvement are larger than 2.5. The 3rd and 4th harmonic cavities have been designed. In particular, the absorbers and antenna couplers are applied in harmonic cavities to damp the higher order modes. Finally, the 4th harmonic cavity similar to the Duke's RF cavity will be used for HLS-Ⅱ.

References

[1]

Byrd J M, Georgsson M. Phys. Rev. ST Accel. Beams, 2001, 4: 030701[2] Bosch R A. Phys. Rev. ST Accel. Beams, 2005, 8: 084401[3] Izava M. Sakanaka S et al. Proceedings of the PAC 1999. 904-906[4] Junko Watanabe, Koichi Nakayama et al. Proceedings of EPAC 2006. 2006, 1325-1327[5] Volkovilov V N et al. Problems of Atomic Science and Technology, 2004, 43: 64-66[6] Takahashi T, Izawa M, Sakanaka S, Umemori K. Proc. of 2005 Particle Accelerator Conference. 2005, 1339-1341[7] Koseki T, Izawa M et al. Development of a Damped Cavity with SiC Beam-Duct. Proceedings of the PAC 1995. 1995

[1]	Wei-Wei Gao , He-Ting Li , Lin Wang . Preliminary study of EEHG-based superradiant undulator radiation at the HLS-II storage ring. Chinese Physics C, 2017, 41(7): 078101. doi: 10.1088/1674-1137/41/7/078101
[2]	Jia-Jun Zheng , Yong-Liang Yang , Bao-Gen Sun , Fang-Fang Wu , Chao-Cai Cheng , Kai Tang , Jun-Hao Wei . Central RF frequency measurement of the HLS-Ⅱ storage ring. Chinese Physics C, 2016, 40(4): 047005. doi: 10.1088/1674-1137/40/4/047005
[3]	FU Yun-Chong , ZHOU Wei-Jian , DU Hua , CHENG Peng , ZHAO Xiao-Lei , LIU Qi , LU Xue-Feng , ZHAO Wen-Nian . A preliminary study of small-mass radiocarbon sample measurement at Xi'an-AMS. Chinese Physics C, 2015, 39(3): 036202. doi: 10.1088/1674-1137/39/3/036202
[4]	YE Xing-Chen , YU Bo-Xiang , ZHOU Xiang , ZHAO L , DING Ya-Yun , LIU Meng-Chao , DING Xue-Feng , ZHANG Xuan , JIE Quan-Lin , FANG Jian , CHEN Hai-Tao , HU Wei , NIU Shun-Li , YAN Jia-Qing , ZHAO Hang , HONG Dao-Jin , . Preliminary study of light yield dependence on LAB liquidscintillator composition. Chinese Physics C, 2015, 39(9): 096003. doi: 10.1088/1674-1137/39/9/096003
[5]	YANG Zi-Qin , LU Xiang-Yang , YANG Liu , LUO Xing , ZHOU Kui , QUAN Sheng-Wen . A preliminary quadrupole asymmetry study of a Iβ=0.12 superconducting single spoke cavity. Chinese Physics C, 2014, 38(10): 107001. doi: 10.1088/1674-1137/38/10/107001
[6]	CHEN Zhen-Ping , ZHENG Hua-Qing , SUN Guang-Yao , SONG Jing , HAO Li-Juan , HU Li-Qin , WU Yi-Can . Preliminary study on CAD-based method of characteristics for neutron transport calculation. Chinese Physics C, 2014, 38(5): 058201. doi: 10.1088/1674-1137/38/5/058201
[7]	YIN Xue-Jun , LI A-Hong , XIAO Yong-Chuang , CHEN Qiang , LIU Hua-Chang , GONG Ke-Yun , FU Shi-Nian . Preliminary study on the RF tuning of CSNS DTL. Chinese Physics C, 2014, 38(2): 027002. doi: 10.1088/1674-1137/38/2/027002
[8]	XU Wei , HE Duo-Hui . Design and optimization of a longitudinal feedback kicker cavity for the HLS-Ⅱ storage ring. Chinese Physics C, 2013, 37(3): 037003. doi: 10.1088/1674-1137/37/3/037003
[9]	ZHAO Yu-Ning , LI Wei-Min , WU Cong-Feng , WANG Lin . Analytic modeling of instabilities driven by higher-order modes in the HLS Ⅱ RF system with a higher-harmonic cavity. Chinese Physics C, 2013, 37(8): 087005. doi: 10.1088/1674-1137/37/8/087005
[10]	LI Jing-Yi , LIU Gong-Fa , XU Wei , LI Wei-Min , LI Yong-Jun . A possible approach to reduce the emittance of HLS-Ⅱ storage ring using a Robinson wiggler. Chinese Physics C, 2013, 37(10): 107006. doi: 10.1088/1674-1137/37/10/107006
[11]	BAI Zheng-He , WANG Lin , JIA Qi-Ka , LI Wei-Min . Lattice optimization for the HLS-Ⅱ storage ring. Chinese Physics C, 2013, 37(1): 017001. doi: 10.1088/1674-1137/37/1/017001
[12]	YANG Yong-Liang , MA Tian-Ji , SUN Bao-Gen , WANG Ji-Gang , ZOU Jun-Ying , CHENG Chao-Cai , LU Ping . A study of pickup and signal processing for HLS-Ⅱ bunch current measurement system. Chinese Physics C, 2013, 37(9): 097006. doi: 10.1088/1674-1137/37/9/097006
[13]	BAI Zheng-He , WANG Lin , JIA Qi-Ka , LI Wei-Min . Lattice study for the HLS-Ⅱ storage ring. Chinese Physics C, 2013, 37(4): 047004. doi: 10.1088/1674-1137/37/4/047004
[14]	LUO Wen , XU Wang , ZHUO Hong-Bin , MA Yan-Yun . Preliminary experimental study and simulation of an energy-tunable quasi-monochromatic laser-Compton X/γ-ray source. Chinese Physics C, 2012, 36(8): 769-776. doi: 10.1088/1674-1137/36/8/016
[15]	FAN Hao , WU Cong-Feng , WANG Lin . Tracking simulations for the HLS-Ⅱ with a passive harmonic cavity in the symmetricand asymmetric fill patterns. Chinese Physics C, 2012, 36(11): 1111-1115. doi: 10.1088/1674-1137/36/11/013
[16]	FAN Hao , WU Cong-Feng , LIU Guang-Chao . Calculations of operating schemes for a passive harmonic cavity in HLS-Ⅱ. Chinese Physics C, 2012, 36(9): 895-899. doi: 10.1088/1674-1137/36/9/018
[17]	ZHAO Yu-Ning , LI Wei-Min , WU Cong-Feng , WANG Lin . Study of Robinson instabilities with a higher-harmonic cavity for the HLS phase Ⅱ project. Chinese Physics C, 2012, 36(11): 1136-1139. doi: 10.1088/1674-1137/36/11/018
[18]	LIAO Yan-Fei , ZHANG Zhi-Ming , LI Dao-Wu , SHUAI Lei , SHAN Bao-Ci , HUANG Xian-Chao , LIU Jun-Hui , CHEN Yan , WANG Ying-Jie , LIU Shuang-Quan , WANG Pei-Lin , WEI Shu-Jun , WEI Long . Preliminary study of depth of interaction measurement for a PET detector. Chinese Physics C, 2011, 35(11): 1070-1073. doi: 10.1088/1674-1137/35/11/017
[19]	MA Hui-Zhou , XU Gang , LEI Ge , CAO Jian-She , MA Li , ZHANG Lei , YUE Jun-Hui , SUI Yan-Feng . Preliminary study of residual orbit oscillation in BEPCⅡ. Chinese Physics C, 2008, 32(10): 849-851. doi: 10.1088/1674-1137/32/10/017
[20]	Zheng Xite , Lei Chunhong , Li Yuliang , Chen Hong . Study of Higher Order Cumulant Expansion of U(l) Lattice Gauge Model at Finite Temperature. Chinese Physics C, 1993, 17(S3): 271-276.

Access

Get Citation

WU Cong-Feng, FAN Hao, WANG Lin, LIU Guang-Chao, FENG Guang-Yao and LI Wei-Min. Preliminary study of the higher-harmoni ccavity for HLS-Ⅱ[J]. Chinese Physics C, 2012, 36(9): 891-894. doi: 10.1088/1674-1137/36/9/017

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2011-11-11
Revised: 1900-01-01

Article Metric

Article Views(2087)
PDF Downloads(293)
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

Preliminary study of the higher-harmoni ccavity for HLS-Ⅱ

Corresponding author: WU Cong-Feng,

Received Date: 2011-11-11

Accepted Date: 1900-01-01

Available Online: 2012-09-05

Abstract: A higher-harmonic cavity will be used to increase the beam lifetime and suppress coupled-bunch instabilities for Hefei Light Source-Ⅱ. In this paper, results simulated by the particle-tracking model confirm that tuning in the harmonic cavity may suppress the parasitic coupled-bunch instabilities. The factors calculated for lifetime improvement are larger than 2.5. The 3rd and 4th harmonic cavities have been designed. In particular, the absorbers and antenna couplers are applied in harmonic cavities to damp the higher order modes. Finally, the 4th harmonic cavity similar to the Duke's RF cavity will be used for HLS-Ⅱ.

HTML

Reference (1)

Preliminary study of the higher-harmoni ccavity for HLS-Ⅱ

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article