IPAC2013 - List of Authors (Wang, Zh.W.)

Paper	Title	Page
MOPEA038	Coherent Wiggler Radiation of Picosecond CW Electron Beam Produced by DC-SRF Photoinjector	160
	S. Huang, J.E. Chen, S. Chen, K.X. Liu, S.W. Quan, Zh.W. Wang, X.D. Wen, F. Zhu PKU, Beijing, People's Republic of China
	The DC-SRF photoinjector at Peking University is capable of providing CW electron beam with the energy of 3-5 MeV. The beam has high repetition rate, picosecond bunch length and high quality, which can be used to produce high repetition rate THz wave by wiggler radiation. Through off-crest acceleration, electron beam from the injector may be bunched, which will lead to coherent enhancement of the radiation power. With current setup of the DC-SRF injector and a 10-period wiggler, THz radiation power of 10s mW to a few watts can be achieved within the wavelength range of 200 μm to 500 μm. In this work, we will present the calculation results about THz radiation produced by the electron beam from DC-SRF photoinjector. The preparation for the experiments will be also described.

MOPFI034	First Intense H⁻ Beam Generated by a Microwave-driven Pure Volume Source	360
	S.X. Peng, J. Chen, J.E. Chen, Z.Y. Guo, H.T. Ren, Zh.W. Wang, Y. Xu, T. Zhang PKU, Beijing, People's Republic of China A.L. Zhang Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China J. Zhao State Key Laboratory of Nuclear Physics and Technology, Beijing, Haidian District, People's Republic of China
	The 2.45 GHz Electron cyclotron resonance (ECR) plasma generators have demonstrated their efficiency, reproducibility on producing H⁺, D⁺, O+, N+, He+, Ar+* and He2+ at Peking University(PKU). Recently, modifications on magnet field configuration, discharge chamber structure and extraction system have been done to set-up a microwave-driven pure volume H⁻ ion source. First experiment was done on PKU ion source test bench at the beginning of Nov, 2012. A 15 mA H⁻ ion beam has been produced at 40 keV by this prototype source. This paper describes the source principle and design in detail and reports on the current status of the development work. * H. T. Ren, S. X. Peng*, P. N. Lu, S. Yan, Q. F. Zhou, J. Zhao, Z. X. Yuan, Z. Y. Guo and J. E. Chen, Rev. Sci. Instrum. 83, 02B905 (2012)

Paper

Title

Page

Coherent Wiggler Radiation of Picosecond CW Electron Beam Produced by DC-SRF Photoinjector

160

S. Huang, J.E. Chen, S. Chen, K.X. Liu, S.W. Quan, Zh.W. Wang, X.D. Wen, F. Zhu
PKU, Beijing, People's Republic of China

The DC-SRF photoinjector at Peking University is capable of providing CW electron beam with the energy of 3-5 MeV. The beam has high repetition rate, picosecond bunch length and high quality, which can be used to produce high repetition rate THz wave by wiggler radiation. Through off-crest acceleration, electron beam from the injector may be bunched, which will lead to coherent enhancement of the radiation power. With current setup of the DC-SRF injector and a 10-period wiggler, THz radiation power of 10s mW to a few watts can be achieved within the wavelength range of 200 μm to 500 μm. In this work, we will present the calculation results about THz radiation produced by the electron beam from DC-SRF photoinjector. The preparation for the experiments will be also described.

MOPFI034

First Intense H⁻ Beam Generated by a Microwave-driven Pure Volume Source

360

S.X. Peng, J. Chen, J.E. Chen, Z.Y. Guo, H.T. Ren, Zh.W. Wang, Y. Xu, T. Zhang
PKU, Beijing, People's Republic of China
A.L. Zhang
Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
J. Zhao
State Key Laboratory of Nuclear Physics and Technology, Beijing, Haidian District, People's Republic of China

The 2.45 GHz Electron cyclotron resonance (ECR) plasma generators have demonstrated their efficiency, reproducibility on producing H⁺, D⁺, O+, N+, He+, Ar+* and He2+ at Peking University(PKU). Recently, modifications on magnet field configuration, discharge chamber structure and extraction system have been done to set-up a microwave-driven pure volume H⁻ ion source. First experiment was done on PKU ion source test bench at the beginning of Nov, 2012. A 15 mA H⁻ ion beam has been produced at 40 keV by this prototype source. This paper describes the source principle and design in detail and reports on the current status of the development work.
* H. T. Ren, S. X. Peng*, P. N. Lu, S. Yan, Q. F. Zhou, J. Zhao, Z. X. Yuan, Z. Y. Guo and J. E. Chen, Rev. Sci. Instrum. 83, 02B905 (2012)