Researches on the Electromagnetic Field in RF Superconducting Cavities

HAO Jian-Kui; HUANG Sen-Lin; ZHU Feng; QUAN Sheng-Wen; ZHAO Kui

Chinese Physics C> 2005, Vol. 29> Issue(8) : 806-809

Researches on the Electromagnetic Field in RF Superconducting Cavities

MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics，Peking University,Beijing 100871,China

Abstract
HTML
Reference
Related

PDF

Abstract：
Q-drop phenomenon usually occurs in RF superconducting cavities made from high pure niobium at high field level. This is caused by the enhancement of local magnetic field at the surface of the niobium cavities. To study the electromagnetic performances of the superconducting cavities at high field, a series of experiments are designed with single cell niobium cavity. By the measurements of the peak surface magnetic field of the cavity, the defects in the cavity can be located with special method. Effective treatments can be used to improve the properties of the superconducting cavities.

References

[1]

Visentin B et al. Cavity Baking: a Cure for the High Accelerator Field Q0 Drop. In Pros. of the 9th Workshop on RF Superconductivity. USA:Los Alamos National Laboratory, 1999.1982 Halbritter J. IEEE Trans. on Appl. Supercom.，2001，11: 18643 Safa H. High Field Behavior of SCRF Cavities. In Pros. of the 10th Workshop on RF Superconductivity. Tsukuba: KEK, 2001.279-2864 Knolbloch J et al. High Field Q Slope in SC Cavities Due to Magnetic Field Enhancement at Grain Boundaries. In Pros. of the 9th Workshop on RF Superconductivity. USA: Los Alamos National Laboratory. 1999.775 Padamsee J, Knobloch J, Hays T. RF Superconductivity for Accelera-torn. New York: John Wiley Sons, Inc，1998. 476 Young L, Billen J. User' s Guide of POISSON SUPERFISH Codes.USA: Los Alamos National Laboratory,2002.1607 Brinkmann R, Floettmann K, Rossbach J et al. TESIA Technical Design Report. Hamburg: DES7，2001，II-248 HAO Jiankui et al. Low Temperature Heat Treatment Effect on High Field EP Cavities. In Pmc. of the 11th Workshop on RF Supemonductivity. Travemunde: DESY, 2003. MoP169 Proch D et al. Dry Ice Cleaning for SRF Applications. In Pmc. of the 10th Workshop on RF Superconductivity. Tsukuba: KEK, 2001, 463-46610 Geng R L et al. Testing the First 1300MHz Reentrant Cavity. SRF Reports of Comell University: SRF 041108-05

[1]	HAO Jian-Kui , ZHAO Kui , ZHANG Bao-Cheng , QUAN Sheng-Wen , WANG Li-Fang , CHEN Jia-Er . Researches on Large Grain SC Cavities at Peking University. Chinese Physics C, 2008, 32(S1): 181-183.
[2]	XU Wen-Can , QUAN Sheng-Wen , HAO Jian-Kui , JIANG Tao , ZHANG Bao-Cheng , ZHAO Kui . Measurement and Adjustment of Dumb-Bells for 9-cell TESLA Cavity. Chinese Physics C, 2008, 32(S1): 154-156.
[3]	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.
[4]	SUN Hong , ZHAO Sheng-Chu , GE Ming-Qi . Magnetic Shield for the Vertical Test System of Superconducting Cavity. Chinese Physics C, 2005, 29(10): 989-992.
[5]	CAO Liang , HUANG Wen-Hui . Accurate Computation on High Order Modes of Axial-symmetric Cavity with The Third Order Vector Finite-Element Method. Chinese Physics C, 2005, 29(8): 793-796.
[6]	GAO Huai-Lin , WANG Nai-Yan , SHAN Yu-Sheng . Experimental Investigations on the Resonator Mirrors of SR-FEL and ICF KrF Laser. Chinese Physics C, 2005, 29(1): 99-103.
[7]	PEI Shi-Lun , WANG Shu-Hong . RF Electro Magnetic Field Effects on the 571.2MHz Normal Conducting Subharmonic Buncher. Chinese Physics C, 2005, 29(9): 912-917.
[8]	HAO Jian-Kui , ZHAO Kui , ZHU Feng . Researches on Bake Effect on RF Superconducting Cavities. Chinese Physics C, 2005, 29(9): 918-922.
[9]	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.
[10]	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.
[11]	LI Zhong-Quan , ZHANG Chuang . Study of Heavily Damped SC RF Cavity. Chinese Physics C, 2003, 27(10): 919-925.
[12]	ZHANG Li-Wen , LI Yong-Gui , WANG Ming-Kai , FAN Yao-Hui . BFEL Optical Cavity's 5-D Precise Remote-Control Adjuster. Chinese Physics C, 2001, 25(9): 909-913.
[13]	WEI Shi , LIN Yu-Zheng . Accurate Computation on High Order Modes of Axial-symmetric Cavity with Vector Finite Element Method. Chinese Physics C, 2001, 25(10): 1017-1021.
[14]	TAO Xiao-Ping , WANG Gui-Cheng , HE Xiao-Ye . Calculation of Leaked Electromagnetic Field in Gallery of Klystron of NSRL. Chinese Physics C, 2001, 25(6): 595-601.
[15]	WANG LanFa , LIN YuZheng . Calculation of Wakefield in Detuning Structure of Next Generation Linear Collider with High Accuracy—Analysis of RF Quantities in Disc Structure. Chinese Physics C, 2000, 24(6): 567-572.
[16]	WANG YanShan , XIE JiaLin , CHANG XiangYun , WANG MingKai , WU Gang , YANG XuePing , LI YongGui . Dynamic Desynchronization of BFEL Optical Resonator. Chinese Physics C, 2000, 24(7): 681-684.
[17]	YU Qing-Chang , QIU Hong , HUANG Jia-Chang . Relations Between Focusing Power of Space-Charge Lenses and External Electromagnetic Fields. Chinese Physics C, 1991, 15(1): 13-16.
[18]	YAN Tai-Xuan , SUN Li-Bo . THE TIME RESPONSE OF THE FERRITE LOADED CAVITY AND STABILITY OF BIAS AUTOTUNING SYSTEM. Chinese Physics C, 1983, 7(3): 346-354.
[19]	CHEN SEN-TU . THE COUPLED RESONATOR MODEL AND THE DISTRIBUTION OF THE ELECTRIC FIELD ON THE AXIS IN THE PERIODIC CAVITY CHAIN. Chinese Physics C, 1982, 6(5): 546-554.
[20]	Zhang Xue-ming . ON THE ACCELERATION OF SINGLE ELECTRON IN THE ELECTROMAGNETIC FIELD. Chinese Physics C, 1980, 4(2): 168-172.

Access

Get Citation

HAO Jian-Kui, HUANG Sen-Lin, ZHU Feng, QUAN Sheng-Wen and ZHAO Kui. Researches on the Electromagnetic Field in RF Superconducting Cavities[J]. Chinese Physics C, 2005, 29(8): 806-809.

HAO Jian-Kui, HUANG Sen-Lin, ZHU Feng, QUAN Sheng-Wen and ZHAO Kui. Researches on the Electromagnetic Field in RF Superconducting Cavities[J]. Chinese Physics C, 2005, 29(8): 806-809. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-11-25
Revised: 1900-01-01

Article Metric

Article Views(3156)
PDF Downloads(616)
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

Researches on the Electromagnetic Field in RF Superconducting Cavities

Corresponding author: HAO Jian-Kui,

MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics，Peking University,Beijing 100871,China

Received Date: 2004-11-25

Accepted Date: 1900-01-01

Available Online: 2005-08-05

Abstract: Q-drop phenomenon usually occurs in RF superconducting cavities made from high pure niobium at high field level. This is caused by the enhancement of local magnetic field at the surface of the niobium cavities. To study the electromagnetic performances of the superconducting cavities at high field, a series of experiments are designed with single cell niobium cavity. By the measurements of the peak surface magnetic field of the cavity, the defects in the cavity can be located with special method. Effective treatments can be used to improve the properties of the superconducting cavities.

HTML

Reference (1)

Researches on the Electromagnetic Field in RF Superconducting Cavities

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article