Design of 325 MHz RF grid-controlled high voltage thermionic cathode electron gun

Xia Qianxu; Zhao Quantang; Zong Yang; Cao Shuchun; Li Zhongping; Shen Xiaokang; Zhang Zimin

doi:10.11884/HPLPB202133.200310

Volume 33 Issue 4

May 2021

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Article Navigation > High Power Laser and Particle Beams > 2021 > 33(4): 044009

Xia Qianxu, Zhao Quantang, Zong Yang, et al. Design of 325 MHz RF grid-controlled high voltage thermionic cathode electron gun[J]. High Power Laser and Particle Beams, 2021, 33: 044009. doi: 10.11884/HPLPB202133.200310

Citation:

Xia Qianxu, Zhao Quantang, Zong Yang, et al. Design of 325 MHz RF grid-controlled high voltage thermionic cathode electron gun[J]. High Power Laser and Particle Beams, 2021, 33: 044009. doi: 10.11884/HPLPB202133.200310

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Design of 325 MHz RF grid-controlled high voltage thermionic cathode electron gun

doi: 10.11884/HPLPB202133.200310

Xia Qianxu^{1, 2
,},
Zhao Quantang^{1, 2},
Zong Yang¹,
Cao Shuchun^{1, 2},
Li Zhongping^{1, 2},
Shen Xiaokang^{1, 2},
Zhang Zimin^{1, 2
,
,}

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049.China

Received Date: 2020-11-16
Rev Recd Date: 2021-03-15

Available Online: 2021-03-26

Publish Date: 2021-05-02

Abstract

Abstract

The electron gun with high repetition rate and high average current has a very wide range of applications. This paper presents the design of a microwave grid-controlled high-voltage thermionic electron gun working in CW mode with a bunch repetition rate of 325 MHz and elaborates the experimental principles of this kind of electron guns. Firstly, simulation software EGUN, POISSON (Poisson Superfish) and GPT (General Particle Tracer) are used to accomplish the structure design of a300kV high-voltage DC electron gun and beam dynamics verification.Secondly, to feed the microwave into the gap between the cathode and the grid of the electron gunefficiently, design of a power supply with a scheme of impedance matching from the radio frequency power source to the cathode is completed.Accordingly, a 325 MHz dual-mode coaxial power supply device is designed, and its feasibility is verified and analyzed..
- RF grid-controlled electron gun,
- impedance matching,
- beam dynamics,
- steady state high voltage platform

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References(18)

References

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