Higher Order Modes Impedance and Damping Study for the LHC Capture Cavity

PAN Wei-Min

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2002, Vol. 26> Issue(10) : 1087-1092

Higher Order Modes Impedance and Damping Study for the LHC Capture Cavity

PAN Wei-Min ^,

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China

Abstract
HTML
Reference
Related

PDF

Abstract：
To investigate the higher order mode (HOM) damping in the LHC 200MHz capture cavity when using four HOM couplers, simulations have been done by both frequency domain and time domain methods. Using these methods the impedance spectra of the higher order modes in the cavity before and after damping has been obtained. From this, detailed information about the HOM coupler's contribution to HOM damping can be obtained. The distribution and magnitude of some potentially dangerous higher order modes in the LHC capture cavity have been found.

References

[1]

Design Considerations for the LHC 200 MHz RF System,LHC Project Report 386,Jan.2000 2 MAFIA Manual PC V .4,CST Company,2000 3 LI De-Run,Robert A Rimmer.Beam Impedance Calculation and Analysis of Higher Order Modes(HOMS)Damped RF Cavities Using MAFIA in Time Domain.Proc.of Particle Accelerator Conference 2001.June,20014 Marhauser F et al.Numerical Simulations of HOM Damped Cavity,Proc.of Particle Accelerator Conference 2001.June,2001 5 Shaposhnikova E .Longitudinal Beam Parameters During Acceleration in the LHC .LHC Project Note 242,Dec.8,2000

[1]	Fei Huang , Hong-Lei Li , Shi-Yuan Li , Zong-Guo Si , Wei Su , Zhong-Juan Yang . Search for W' signal in single top quark production at the LHC. Chinese Physics C, 2018, 42(3): 033103. doi: 10.1088/1674-1137/42/3/033103
[2]	Claudio O. Dib , C. S. Kim , Kechen Wang . Search for heavy sterile neutrinos in trileptons at the LHC. Chinese Physics C, 2017, 41(10): 103103. doi: 10.1088/1674-1137/41/10/103103
[3]	Hong-Lei Li , Peng-Cheng Lu , Zong-Guo Si , Ying Wang . Associated production of Higgs boson and tt at LHC. Chinese Physics C, 2016, 40(6): 063102. doi: 10.1088/1674-1137/40/6/063102
[4]	TAN Zhi-Guang , ZHENG Hua , HUANG Li-Yuan . Can a Higgs boson be produced at the LHC?. Chinese Physics C, 2012, 36(5): 395-398. doi: 10.1088/1674-1137/36/5/003
[5]	ZHOU Dai-Cui , WAN Ren-Zhuo , MAO Ya-Xian , WANG Meng-Liang , MA Ke , WANG Ya-Ping , YIN Zhong-Bao , CAI Xu , for the , ALICE collaboration . High pt and photon physics with ALICE at LHC. Chinese Physics C, 2010, 34(9): 1383-1386. doi: 10.1088/1674-1137/34/9/048
[6]	JI Bin , ZHAO Zhen-Lu , ZHANG Tian-Jue , XING Jian-Sheng , WANG Xiu-Long , YIN Zhi-Guo , HOU Shi-Gang , XIA Le . Theoretical and Practical Study on RF Model Cavity of 100MeV H^－ Cyclotron. Chinese Physics C, 2008, 32(S1): 160-162.
[7]	L.Dumas¹ , C.Hill¹ , D.Hitz² , D.Kuchler¹ , C.Mastrostefano¹ , M.O'Neil¹ , R.Scrivens¹ . Operation of the GTS-LHC Source for the Hadron Injection at CERN. Chinese Physics C, 2007, 31(S1): 51-54.
[8]	WANG Ya-Ping , CAI Xu . ALICE Experiment at LHC and its Trigger Decision of PHOS. Chinese Physics C, 2006, 30(12): 1218-1221.
[9]	GE Ming-Qi , ZHAO Sheng-Chu , SUN Hong , GAO Jie . Design study on 1.3GHz Mono-cell High Gradient Low Loss Superconducting Cavity. Chinese Physics C, 2006, 30(4): 354-358.
[10]	LIU Hua-Chang , WANG Xiu-Long , FU Shi-Nian . Design Study on an Electron Linac for Irradiation Processing with a High Capture Efficiency. Chinese Physics C, 2006, 30(6): 581-586.
[11]	ZHU Feng , QUAN Sheng-Wen , ZHAO Kui , CHEN Jia-Er . Study on High Order Modes of a β=0.45,f=350MHz Spoke Cavity. Chinese Physics C, 2006, 30(10): 1006-1009.
[12]	WANG Gui-Mei , WU Wen-Zong , Xiangyang LU , ZHANG Bao-Cheng , QUAN Sheng-Wen , ZHU Feng , LIN LIN , JIAO Fei , ZHAO Kui . Study on HOMs in 1+1/2 Cell Superconducting Cavity. Chinese Physics C, 2005, 29(11): 1077-1080.
[13]	LIU Hai-Yan , RUAN Jian-Hong . Parton Distributions at LHC Energies. Chinese Physics C, 2004, 28(7): 706-710.
[14]	PAN Wei-Min , SUN Yi , WANG Guang-Wei , Takaaki Furuya , ichi Kurokawa . Studies on Higher Order Modes in BEPCⅡ Superconducting Cavity. Chinese Physics C, 2004, 28(3): 317-320.
[15]	XU Zhong-Xiong , WANG Fang-An , QI Xin . Experimental Studies on Sub-Harmonic Suppression of Magnet Power Supply. Chinese Physics C, 2003, 27(7): 637-640.
[16]	LI Zhong-Quan , ZHANG Chuang . Study of Heavily Damped SC RF Cavity. Chinese Physics C, 2003, 27(10): 919-925.
[17]	LIN Zhi-Gang , ZHOU Lin , CHEN Huai-Bi , ZHAO Zhen-Tang . Suppression of HOM's on a Prototype Superconducting Cavity by Absorbers. Chinese Physics C, 2003, 27(8): 735-738.
[18]	LI YunDe , XU XiaoMei , LIU LianShou . Nuclear Shadowing Effect in Photoproduction Process at LHC. Chinese Physics C, 2000, 24(1): 87-90.
[19]	Zhao Zhentang . HOMs Power Generated by Unequany Spaced and Populated Bunches in Storage Ring. Chinese Physics C, 1999, 23(9): 914-921.
[20]	Zu Donglin , Chen jiaer . Study on SRF Multicell Accelerating Cavity for Linear Collider and Trapped Modes. Chinese Physics C, 1997, 21(2): 180-186.

Access

Get Citation

PAN Wei-Min. Higher Order Modes Impedance and Damping Study for the LHC Capture Cavity[J]. Chinese Physics C, 2002, 26(10): 1087-1092.

PAN Wei-Min. Higher Order Modes Impedance and Damping Study for the LHC Capture Cavity[J]. Chinese Physics C, 2002, 26(10): 1087-1092. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-01-18
Revised: 1900-01-01

Article Metric

Article Views(2755)
PDF Downloads(525)
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

Higher Order Modes Impedance and Damping Study for the LHC Capture Cavity

PAN Wei-Min ^,

Corresponding author: PAN Wei-Min,

Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China

Received Date: 2002-01-18
Accepted Date: 1900-01-01
Available Online: 2002-10-05

Abstract: To investigate the higher order mode (HOM) damping in the LHC 200MHz capture cavity when using four HOM couplers, simulations have been done by both frequency domain and time domain methods. Using these methods the impedance spectra of the higher order modes in the cavity before and after damping has been obtained. From this, detailed information about the HOM coupler's contribution to HOM damping can be obtained. The distribution and magnitude of some potentially dangerous higher order modes in the LHC capture cavity have been found.