Nanosecond grade edge chopper power supply system of high current proton accelerator

Li Haibo; Shen Li; Zhai Jun; Zhou Guozhong

doi:10.11884/HPLPB201729.170086

Volume 29 Issue 08

Aug. 2017

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Article Navigation > High Power Laser and Particle Beams > 2017 > 29(08): 085001

Liu Jiao, Yan Liping, Li Bin, et al. Artificial neural network modeling of component nonlinear behavior and application in conducted interference analysis[J]. High Power Laser and Particle Beams, 2015, 27: 103212. doi: 10.11884/HPLPB201527.103212

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Li Haibo, Shen Li, Zhai Jun, et al. Nanosecond grade edge chopper power supply system of high current proton accelerator[J]. High Power Laser and Particle Beams, 2017, 29: 085001. doi: 10.11884/HPLPB201729.170086

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Nanosecond grade edge chopper power supply system of high current proton accelerator

doi: 10.11884/HPLPB201729.170086

Li Haibo^{1,2
,
,},
Shen Li^1,2,
Zhai Jun^1,2,
Zhou Guozhong^1,2

1.
Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;
2.
Dongguan Neutron Science Center,Dongguan 523803,China

Received Date: 2017-03-14
Rev Recd Date: 2017-04-25
Publish Date: 2017-08-15

Abstract

Abstract

This paper present the detailed analysis of the principle of chopper power supply of China Spallation Neutron Source (CSNS ) linear accelerator. The rising edge and the falling edge of the chopped beam bunch are important indexes of the performance of the chopper power supply. Based on the research, a chopper power supply with pulse amplitude of 6 kV and nanosecond grade edge is developed. The method of pure hardware circuit instead of software is used to realize the synchronization and AND processing of high frequency and low frequency signals, which can make the power supply output stable and reliable high voltage pulse. The power supply has two modes (multi pulse and single pulse) to meet the requirements of single beam or multi beam injection into the Rapid Cycling Synchrotron(RCS) ring. The results of the CSNS linac beam chop experiment show that the power supply meets all the design requirements.
- chopper power supply,
- synchronization and AND processing,
- nanosecond grade edge,
- multi pulse mode and single pulse mode,
- beam bunch

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