Calculating Field Distribution of a Linear Accelerator Using Equivalent Circuit Model

SHI Jia-Ru; ZHENG Shu-Xin; CHEN Huai-Bi

Chinese Physics C> 2006, Vol. 30> Issue(7) : 699-703

Calculating Field Distribution of a Linear Accelerator Using Equivalent Circuit Model

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Equivalent circuit model is used to calculate field distribution of a coupled cavity chain. An RF cavity can be represented as a resonant LC circuit and the coupler as an idealized transformer. By solving the equations of the circuit model and simulating each cavity shape, the field distribution of the entire cavity chain is calculated. This method is very useful in particle dynamics simulation and accelerator geometry design. Calculation result and experimental measurement of a 16MeV BTW(backward traveling wave) linac is presented.

References

[1]

. LIN Yu-Zheng. Principle of Low Energy Electron Linear Accelerators. Teaching Materials, Tsinghua University,1990(in Chinese)(林郁正.低能电子直线加速器原理.清华大学讲义，1990)2. Nagel D E, Knapp E A, Knapp B C. Review of Scientic Instruments, 1967, 38(11): 15833. Sekutowicz J. IEEE Transactions on Nuclear Science, 1985,NS32: 28544. CHEN Huai-Bi et al. HEP NP, 1999, 23(5): 496-503(in Chinese)(陈怀璧等.高能物理与核物理，1999, 23(5):496-503)5. ZHENG Shu-Xin. Ph.D Thesis, Tsinghua University, 2000(in Chinese)(郑曙昕.清华大学博士论文，2000)6. BIAN Xiao-Hao et al. HEP NP, 2005, 29(9): 900-902(in Chinese)(边晓浩等.高能物理与核物理，2005, 29(9): 900-902)

[1]	PAN Wei-Min , WANG Guang-Wei , . Calculation of the External Quality Factor of the High Power Input Coupler for the BEPCII Superconducting Cavity. Chinese Physics C, 2008, 32(1): 72-74. doi: 10.1088/1674-1137/32/1/016
[2]	WANG Ju-Xia , YANG Zhi-Yong , AN Yu-Ying . Quantum Information Transfer in the Process of Coupled Atoms Interacting with Cavity Fields. Chinese Physics C, 2007, 31(2): 204-208.
[3]	LI Zhi-Hui . Study of the Capacitance Coupling in Accelerators. Chinese Physics C, 2006, 30(7): 680-683.
[4]	PEI Shi-Lun , WANG Shu-Hong . Wake Field Calculation Studies in Constant Gradient Accelerating Structures. Chinese Physics C, 2006, 30(3): 251-259.
[5]	WU Cong-Feng , DONG Sai , LIN Hui , PEI Yuan-Ji . Calculations　of propagation characteristics and the model cavity investigations for a X-band hybrid dielectric-iris-loaded traveling accelerating structure. Chinese Physics C, 2006, 30(S1): 57-59.
[6]	BIAN Xiao-Hao , CHEN Huai-Bi , ZHENG Shu-Xin . Calculating of Coupling Factor for the Heterogeneous Part of Accelerating Structure. Chinese Physics C, 2006, 30(1): 62-65.
[7]	SHI Jia-Ru , ZHENG Shu-Xin , CHEN Huai-Bi , TANG Chuan-Xiang . Calculating RF Parameters of Individual Cell by Electronic Field Distribution of a Coupled Cavity Chain. Chinese Physics C, 2005, 29(8): 818-823.
[8]	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.
[9]	BIAN Xiao-Hao , CHEN Huai-Bi , ZHENG Shu-Xin . Calculating of Coupling Factor for Double-Period Accelerating Structure. Chinese Physics C, 2005, 29(9): 900-902.
[10]	WANG Quan-Jin , ZHAN Wen-Long , GUO Zhong-Yan , XIAO Guo-Qing , SUN Zhi-Yu , LI Jia-Xing , WANG Jian-Song , WANG Meng , CHEN Zhi-Qiang , WANG Jin-Chuan , TIAN Wen-Dong , WANG Wu-Sheng , MAO Rui-Shi . Influence of the Modified Density Factor on Reaction Cross Section Below 100 MeV/u Energies. Chinese Physics C, 2002, 26(1): 58-63.
[11]	DONG Yu-Bing . Study of ΔπN and πNN Couplings. Chinese Physics C, 2001, 25(12): 1178-1183.
[12]	NI Yi , TONG De-Chun , LIN Yu-Zheng . Diagnosis of Individual Cell Frequencies in a Coupled Cavity Chain by Genetic Algorithms. Chinese Physics C, 2001, 25(7): 689-695.
[13]	GUO Hua . Nuclear Surface Properties and Spin-Orbit Potential in Modified Derivative Scalar Couplings. Chinese Physics C, 2000, 24(11): 1030-1037.
[14]	Fang Deqing , Feng Jun , Shen Wenqing , Cai Xiangzhou , Wang Jiansong , Ye Wei , Ma Yugna . Statistical Abrasion Model Calculation of Isotope Distribution Produced by Intermediate Energy Heavy Ion Reaction. Chinese Physics C, 1999, 23(5): 475-480.
[15]	Zhang Mutian , Xu Taoguang , Zhou Linong , Guo Weiming . Design of Identical Cavity Coupled-Cavity Drift Tube Linac (CCDTL) Tanks. Chinese Physics C, 1999, 23(12): 1223-1230.
[16]	Zhang Mutian , Qiao Jimin , Zhou Linong , Xu Wenwu , Zhang Zonghua , Wang Liming , Li Jian . Experimental Study of a Prototype of Ferrite Loaded Untuned RF Cavity. Chinese Physics C, 1998, 22(9): 853-857.
[17]	Ni Yi , Xiao Liling , Tong Dechun , Tian Bo , Jin Qingxiu , Huang Yuanzhong . Diagnosis of Individual Cell Frequencies in a Coupled Cavity Chain Without Introducing Objects Into the Cavity. Chinese Physics C, 1998, 22(6): 570-575.
[18]	WEN Wan-Xin , GU Jin-Nan . The Effective Boson Charges. Chinese Physics C, 1992, 16(2): 178-182.
[19]	LONG Gui-Lu , SUN Hong-Zhou . GROUP CHAIN CHECK ON THE PROTON-NEUTRON INTERACTING BOSON MODEL COMPUTER CODE NPBOS. Chinese Physics C, 1989, 13(9): 849-855.
[20]	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.

Access

Get Citation

SHI Jia-Ru, ZHENG Shu-Xin and CHEN Huai-Bi. Calculating Field Distribution of a Linear Accelerator Using Equivalent Circuit Model[J]. Chinese Physics C, 2006, 30(7): 699-703.

SHI Jia-Ru, ZHENG Shu-Xin and CHEN Huai-Bi. Calculating Field Distribution of a Linear Accelerator Using Equivalent Circuit Model[J]. Chinese Physics C, 2006, 30(7): 699-703. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-09-27
Revised: 2005-12-05

Article Metric

Article Views(4733)
PDF Downloads(820)
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

Calculating Field Distribution of a Linear Accelerator Using Equivalent Circuit Model

Corresponding author: SHI Jia-Ru,

Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Received Date: 2005-09-27
Accepted Date: 2005-12-05
Available Online: 2006-07-05

Abstract: Equivalent circuit model is used to calculate field distribution of a coupled cavity chain. An RF cavity can be represented as a resonant LC circuit and the coupler as an idealized transformer. By solving the equations of the circuit model and simulating each cavity shape, the field distribution of the entire cavity chain is calculated. This method is very useful in particle dynamics simulation and accelerator geometry design. Calculation result and experimental measurement of a 16MeV BTW(backward traveling wave) linac is presented.