Design of large-orbit electron gun for 8 mm third-harmonic peniotron

Wu Xinhui; Li Jiayin; Zhao Xiaoyun; Hu Biao; Li Tianming

Volume 24 Issue 07

Jun. 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(07): 1569-1574

wu hui, wu jian-qiang, zhang zhi-wei, et al. Pulsed fast discharge power supply of S2 laser[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

Wu Xinhui, Li Jiayin, Zhao Xiaoyun, et al. Design of large-orbit electron gun for 8 mm third-harmonic peniotron[J]. High Power Laser and Particle Beams, 2012, 24: 1569-1574.

wu hui, wu jian-qiang, zhang zhi-wei, et al. Pulsed fast discharge power supply of S2 laser[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

Wu Xinhui, Li Jiayin, Zhao Xiaoyun, et al. Design of large-orbit electron gun for 8 mm third-harmonic peniotron[J]. High Power Laser and Particle Beams, 2012, 24: 1569-1574.

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Design of large-orbit electron gun for 8 mm third-harmonic peniotron

1.
School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 610054,China

Publish Date: 2012-07-15

Abstract

Abstract

According to current magnetic and processing conditions, a gradually-changing reversal magnetic system and a practical 8 mm third-harmonic peniotron electron gun are designed. This large-orbit electron gun is designed under the operating voltage of 43.5 kV, and operating current of 1.45 A, and its cathode can be located in the axial magnetic field where its magnitude decreases gradually. It does not demand the consistency between the field lines and the contour of the beam trajectories, which reduces the design requirements and difficulty greatly. After optimization, an axis-encircling electron beam with an axial velocity spread of 4.78%, a guiding center deviation ratio of 7.18% and a velocity ratio of 2.2 is obtained, which satisfies the requirements of the third-harmonic peniotron. The large-signal simulation shows that, driven by the electron gun, the peniotron can achieve an output power of 31.9 kW with the efficiency up to 49.4%. This is an attractive result in laboratory platform.
- 8 mm third-harmonic peniotron,
- gradually-changing reversal magnetic field,
- large-orbit electron gun,
- electron beam quality

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