Design and test of SX-FEL cavity BPM

YUAN Ren-Xian; ZHOU Wei-Min; CHEN Zhi-Chu; YU Lu-Yang; WANG Bao-Pen; LENG Yong-Bin

doi:10.1088/1674-1137/37/11/118001

Chinese Physics C> 2013, Vol. 37> Issue(11) : 118001 DOI: 10.1088/1674-1137/37/11/118001

Design and test of SX-FEL cavity BPM

Abstract
HTML
Reference
Related

PDF

Abstract：
This paper reports the design and cold test of the cavity beam position monitor (CBPM) for SX-FEL to fulfill the requirement of beam position measurement resolution of less than 1 u m,even 0.1 u m. The CBPM was optimized by using a coupling slot to damp the TM₀₁₀ mode in the output signal. The isolation of TM₀₁₀ mode is about 117 dB,and the shunt impedance is about 200Ω@4.65 GHz with the quality factor 80 from MAFIA simulation and test result. A special antenna was designed to load power for reducing excitation of other modes in the cavity. The resulting output power of TM₁₁₀ mode was about 90 mV/mm when the source was 6 dBm,and the accomplishable minimum voltage was about 200 uV. The resolution of the CBPM was about 0.1u m from the linear fitting result based on the cold test.

References

[1]

Johnson R et al. Cavity BPMs for the NLC. SLAC-PUB-9211,2002[2] Walston S et al. Performance of a High Resolution Cavity Beam Position Monitor System. SLAC-PUB-12492,2007[3] Maesaka H,Inoue S et al. Development of the RF Cavity BPM of XFEL/Spring-8 DIPAC09,2009[4] CHU J H. Development of a C-band Cavity BPM and RF Electronics (Doctoral Thesis). Shanghai: Shanghai Institute of Applied Physics,2008(in Chinese)[5] LUO J. Research of a Cavity BPM System (Doctoral Thesis). Hefei: University of Science and Technology of China,2008(in Chinese)

[1]	Zhou-Yu Zhao , He-Ting Li , Qi-Ka Jia . Effect of cavity length detuning on the output characteristics for the middle infrared FEL oscillator of FELiChEM. Chinese Physics C, 2017, 41(10): 108101. doi: 10.1088/1674-1137/41/10/108101
[2]	Qi-Ka Jia . Parameter design considerations for an oscillator IR-FEL. Chinese Physics C, 2017, 41(1): 018101. doi: 10.1088/1674-1137/41/1/018101
[3]	Yang Wu , Yong-Dong Chen , De-Kui Zhao . Simulation and design of an X-band overmoded input cavity. Chinese Physics C, 2016, 40(6): 067002. doi: 10.1088/1674-1137/40/6/067002
[4]	Hong-Juan Zheng , Jie Gao , Zhen-Chao Liu . Cavity and HOM coupler design for CEPC. Chinese Physics C, 2016, 40(5): 057001. doi: 10.1088/1674-1137/40/5/057001
[5]	MI Zheng-Hui , ZHAO Dan-Yang , SUN Yi , PAN Wei-Min , LIN Hai-Ying , LU Xiang-Yang , QUAN Sheng-Wen , LUO Xing , LI Ming , YANG Xing-Fan , WANG Guang-Wei , DAI Jian-Ping , LI Zhong-Quan , MA Qiang , SHA Peng . Design and test of frequency tuner for a CAEP high power THz free-electron laser. Chinese Physics C, 2015, 39(2): 028102. doi: 10.1088/1674-1137/39/2/028102
[6]	HU Tong-Ning , CHEN Qu-Shan , PEI Yuan-Ji , LI Ji , QIN Bin . Physical design of FEL injector based on the performance-enhanced EC-ITC RF gun. Chinese Physics C, 2014, 38(1): 018101. doi: 10.1088/1674-1137/38/1/018101
[7]	LIU Zhen-Chao , GAO Jie , LI Zhong-Quan , ZHAI Ji-Yuan , ZHAO Tong-Xian , LI Da-Zhang , LIU Yi-Lin , SUN Yi . ADS 650 MHz medium beta cavity study and design. Chinese Physics C, 2013, 37(1): 017005. doi: 10.1088/1674-1137/37/1/017005
[8]	CUI Xiao-Hao , JIAO Yi , WANG Jiu-Qing , WANG Shu-Hong . BBU effect in an ERL-FEL two-purpose test facility. Chinese Physics C, 2013, 37(7): 077005. doi: 10.1088/1674-1137/37/7/077005
[9]	SU Jia-Hang , DU Ying-Chao , HUA Jian-Fei , ZHENG Shu-Xin , QIU Jia-Qi , YANG Jin , HUANG Wen-Hui , CHEN Huai-Bi , TANG Chuan-Xiang . Design and cold test of a rectangular cavity beam position monitor. Chinese Physics C, 2013, 37(1): 017002. doi: 10.1088/1674-1137/37/1/017002
[10]	MI Zheng-Hui , SUN Yi , WANG Guang-Wei , PAN Wei-Min , LI Zhong-Quan , DAI Jian-Ping , MA Qiang , LIN Hai-Ying , LIU Ya-Ping , XU Bo , HUANG Hong , WANG Qun-Yao , XU Yu-Fen , ZHAO Guang-Yuan , HUANG Tong-Ming , SHA Peng , MENG Fan-Bo , QIU Feng , LI Han , CHEN Xu , ZHAO Dan-Yang , ZHANG Juan . Horizontal test for BEPCⅡ 500 MHz spare cavity. Chinese Physics C, 2012, 36(10): 996-999. doi: 10.1088/1674-1137/36/10/014
[11]	WANG Shu-Hong , WANG Jiu-Qing , CHEN Sen-Yu , CHI Yun-Long , WANG Guang-Wei , CAO Jian-She , LIU Sheng-Guang , GAO Jie , ZHAI Ji-Yuan , LIU Wei-Bin , CUI Xiao-Hao , XU Jin-Qiang , ZHOU Zu-Sheng , LI Xiao-Ping , LU Hui-Hua , XIAO Qiong . Design studies on the ERL-FEL test facility at IHEP, Beijing. Chinese Physics C, 2012, 36(5): 469-474. doi: 10.1088/1674-1137/36/5/016
[12]	LIU Sheng-Guang , XU Jin-Qiang . Design studies on a 500 kV DC gun photo-injector for the BXERL test facility. Chinese Physics C, 2011, 35(1): 88-91. doi: 10.1088/1674-1137/35/1/018
[13]	XIAO Yong-Chuan , YIN Xue-Jun , MU Zhen-Cheng , FU Shi-Nian . Study on the HOMs coupler design of spoke cavity. Chinese Physics C, 2011, 35(2): 188-192. doi: 10.1088/1674-1137/35/2/016
[14]	XU Ji-Lei , GUAN Meng-Yun , YANG Chang-Gen , WANG Yi-Fang , ZHANG Jia-Wen , LU Chang-Guo , Kirk McDonald , Robert Hackenburg , Kwong Lau , Logan Lebanowski , Cullen Newsom , Lin Shih-Kai , Jonathan Link , MA Lie-Hua , Viktor Pec , Vit Vorobel , CHEN Jin , LIU Jin-Chang , ZHOU Yong-Zhao , LIANG Hao . Design and preliminary test results of Daya Bay RPC modules. Chinese Physics C, 2011, 35(9): 844-850. doi: 10.1088/1674-1137/35/9/011
[15]	LUO Feng , BEI Hua , DAI Zhi-Min . Design study of an FEL oscillator with a waveguide. Chinese Physics C, 2010, 34(4): 512-515. doi: 10.1088/1674-1137/34/4/019
[16]	BEI Hua , DENG Hai-Xiao , DAI Zhi-Min . Design of EPU oscillator cavity in femtosecond accelerator. Chinese Physics C, 2009, 33(S2): 93-95. doi: 10.1088/1674-1137/33/S2/024
[17]	ZHU Xiong-Wei , WANG Shu-Hong , CHEN Sen-Yu . Design study on the merger for BXERL-FEL. Chinese Physics C, 2009, 33(8): 696-700. doi: 10.1088/1674-1137/33/8/019
[18]	MA Guang-Ming , ZHAO Zhen-Tang , LIU Jian-Fei . Design of a higher harmonic cavity for the SSRF storage ring. Chinese Physics C, 2008, 32(4): 275-279. doi: 10.1088/1674-1137/32/4/007
[19]	CHEN Xi-Hui , XIE Xiao-Xi , LI Xiao-Nan , GAO Cui-Shan , ZHANG Yin-Hong , NIE Zhen-Dong , MIN Jian , XIE Yi-GANG . Design and implementation of the detector control system for the BESⅢ drift chamber cosmic ray test. Chinese Physics C, 2008, 32(8): 649-652. doi: 10.1088/1674-1137/32/8/012
[20]	YUAN Ren-Xian , YUE Jun-Hui , CAO Jian-She , MA Li . Simulation of BEPCⅡ′s BPM. Chinese Physics C, 2004, 28(6): 664-668.

Access

Get Citation

YUAN Ren-Xian, ZHOU Wei-Min, CHEN Zhi-Chu, YU Lu-Yang, WANG Bao-Pen and LENG Yong-Bin. Design and test of SX-FEL cavity BPM[J]. Chinese Physics C, 2013, 37(11): 118001. doi: 10.1088/1674-1137/37/11/118001

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2013-01-07
Revised: 1900-01-01

Article Metric

Article Views(1836)
PDF Downloads(220)
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

Design and test of SX-FEL cavity BPM

Corresponding author: YUAN Ren-Xian,

Received Date: 2013-01-07

Accepted Date: 1900-01-01

Available Online: 2013-11-05

Abstract: This paper reports the design and cold test of the cavity beam position monitor (CBPM) for SX-FEL to fulfill the requirement of beam position measurement resolution of less than 1 u m,even 0.1 u m. The CBPM was optimized by using a coupling slot to damp the TM₀₁₀ mode in the output signal. The isolation of TM₀₁₀ mode is about 117 dB,and the shunt impedance is about 200Ω@4.65 GHz with the quality factor 80 from MAFIA simulation and test result. A special antenna was designed to load power for reducing excitation of other modes in the cavity. The resulting output power of TM₁₁₀ mode was about 90 mV/mm when the source was 6 dBm,and the accomplishable minimum voltage was about 200 uV. The resolution of the CBPM was about 0.1u m from the linear fitting result based on the cold test.

HTML

Reference (1)

Design and test of SX-FEL cavity BPM

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article