IPAC2013 - List of Authors (Fan, M.)

Paper

Title

Page

Analysis and Design of Matching Unit for a RF Driven Plasma Source for Fusion Purpose

389

H.K. Yue
Huazhong University of Science and Technology(HUST), Wuhan, People's Republic of China
D.Z. Chen, M. Fan, J. Huang, D. Li, X.F. Li, K.F. Liu, C.R. Wan, C. Zhou
HUST, Wuhan, People's Republic of China

A RF driven plasma exciter for producing negative ions, aiming for heating and current drive neutral beam injectors for fusion applications, is in developing in Huazhong University of Science and Technology (HUST). In order to couple the maximum RF power to the source, the matching unit is designed to match the impedance of the source to that of the RF coaxial line. Firstly, a FEM model was built to estimate the equivalent circuit parameters of the source. Numerical predictions were compared with a small experimental setup to verify the accuracy of the fem model. Based on the numerical results, the RF coil and the matching components were carefully designed. Finally, the matching circuit for the source is developed and tested. Experimental results will be presented in the full paper.

WEIB205

Promoting Local Economic Development by an Integration of Industry, Teaching and Research of Compact Low Energy Accelerators

2119

M. Fan, D.Z. Chen, J. Huang, D. Li, K.F. Liu, B. Qin, Y.Q. Xiong, J. Yang, T. Yu
HUST, Wuhan, People's Republic of China
H.Q. Gao
Hubei University of Science and Technology, Hubei, People's Republic of China

Huazhong University of Science and Technology has been carrying out R&D of compact low energy accelerators by integrating industry, teaching and research to promote local economic development supported by both national and provincial government and local enterprises. Currently, the projects include: compact medical cyclotron, electron irradiation accelerators, etc. The industry of non-power nuclear energy based on low energy particle accelerator has also drawn attention from the provincial government of Hubei and municipal government of Xianning. Meanwhile, a series of lectures about nuclear science and nuclear safety were hosted to help the public better understand nuclear technology and to wipe out fears of nuclear energy. At the moment, the application of non-power nuclear energy with based on compact low energy accelerator is developing into an industry chain in the area of central China.

Slides WEIB205 [2.311 MB]

WEPWA023

Design of 14 MeV LINAC for THz Source Based FEL

2181

Y.J. Pei, G. Feng, Y. Hong, G. Huang, D. Jia, K. Jin, C. Li, J. Li, S. Lu, L. Shang
USTC/NSRL, Hefei, Anhui, People's Republic of China
Q.S. Chen, M. Fan, T. Hu, Y.Q. Xiong, H. Zeng
HUST, Wuhan, People's Republic of China
B. Qing, Z.X. Tang, X.L. Wei
USTC, Hefei, Anhui, People's Republic of China
L.G. Shen, F. Zhang
USTC/PMPI, Hefei, Anhui, People's Republic of China

Abstract THz wave have many special performances, such as it can penetrate deep into many organic materials without the damage associated with ionizing radiation such as X-ray, it can be used to distinguish between materials with varying water content, because THz radiation is absorbed by water. In part researchers lacked reliable sources of THz, so develop new THz sources is important now. So far there were many kind of THz Source, one of them is THz source based a FEL that can produce high power (~kW). This paper will describe the design of a LINAC of 14MeV which is used for FEL to produce THz radiation. The LINAC is mainly composed of a novel EC-ITC RF gun, compensation coil, constant gradient accelerating structure, beam diagnostic system and so on. Main design parameters are as following: Energy 7~15MeV Beam current (macro pulse) 571mA (micro pulse) 30~40° Bunch length 5~7ps Charge per bunch 200~300pC Normalized emittance ≤10mm.mrad Energy spread(rms) ≤0.5%

Paper	Title	Page
MOPFI047	Analysis and Design of Matching Unit for a RF Driven Plasma Source for Fusion Purpose	389
	H.K. Yue Huazhong University of Science and Technology(HUST), Wuhan, People's Republic of China D.Z. Chen, M. Fan, J. Huang, D. Li, X.F. Li, K.F. Liu, C.R. Wan, C. Zhou HUST, Wuhan, People's Republic of China
	A RF driven plasma exciter for producing negative ions, aiming for heating and current drive neutral beam injectors for fusion applications, is in developing in Huazhong University of Science and Technology (HUST). In order to couple the maximum RF power to the source, the matching unit is designed to match the impedance of the source to that of the RF coaxial line. Firstly, a FEM model was built to estimate the equivalent circuit parameters of the source. Numerical predictions were compared with a small experimental setup to verify the accuracy of the fem model. Based on the numerical results, the RF coil and the matching components were carefully designed. Finally, the matching circuit for the source is developed and tested. Experimental results will be presented in the full paper.

WEIB205	Promoting Local Economic Development by an Integration of Industry, Teaching and Research of Compact Low Energy Accelerators	2119
	M. Fan, D.Z. Chen, J. Huang, D. Li, K.F. Liu, B. Qin, Y.Q. Xiong, J. Yang, T. Yu HUST, Wuhan, People's Republic of China H.Q. Gao Hubei University of Science and Technology, Hubei, People's Republic of China
	Huazhong University of Science and Technology has been carrying out R&D of compact low energy accelerators by integrating industry, teaching and research to promote local economic development supported by both national and provincial government and local enterprises. Currently, the projects include: compact medical cyclotron, electron irradiation accelerators, etc. The industry of non-power nuclear energy based on low energy particle accelerator has also drawn attention from the provincial government of Hubei and municipal government of Xianning. Meanwhile, a series of lectures about nuclear science and nuclear safety were hosted to help the public better understand nuclear technology and to wipe out fears of nuclear energy. At the moment, the application of non-power nuclear energy with based on compact low energy accelerator is developing into an industry chain in the area of central China.
	Slides WEIB205 [2.311 MB]

WEPWA023	Design of 14 MeV LINAC for THz Source Based FEL	2181
	Y.J. Pei, G. Feng, Y. Hong, G. Huang, D. Jia, K. Jin, C. Li, J. Li, S. Lu, L. Shang USTC/NSRL, Hefei, Anhui, People's Republic of China Q.S. Chen, M. Fan, T. Hu, Y.Q. Xiong, H. Zeng HUST, Wuhan, People's Republic of China B. Qing, Z.X. Tang, X.L. Wei USTC, Hefei, Anhui, People's Republic of China L.G. Shen, F. Zhang USTC/PMPI, Hefei, Anhui, People's Republic of China
	Abstract THz wave have many special performances, such as it can penetrate deep into many organic materials without the damage associated with ionizing radiation such as X-ray, it can be used to distinguish between materials with varying water content, because THz radiation is absorbed by water. In part researchers lacked reliable sources of THz, so develop new THz sources is important now. So far there were many kind of THz Source, one of them is THz source based a FEL that can produce high power (~kW). This paper will describe the design of a LINAC of 14MeV which is used for FEL to produce THz radiation. The LINAC is mainly composed of a novel EC-ITC RF gun, compensation coil, constant gradient accelerating structure, beam diagnostic system and so on. Main design parameters are as following: Energy 7~15MeV Beam current (macro pulse) 571mA (micro pulse) 30~40° Bunch length 5~7ps Charge per bunch 200~300pC Normalized emittance ≤10mm.mrad Energy spread(rms) ≤0.5%