Space charge distribution in magnetrons

Qiu Jiaqi; Chen Huaibi; Tang Chuanxiang; Du Yingchao

doi:10.3788/HPLPB20132502.0477

Volume 25 Issue 02

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(02): 477-480

Li Mintang, Wang Guangdong, Zhang Chunhe, et al. Effect of pulse current waveform on sliding performance of solid armatures[J]. High Power Laser and Particle Beams, 2012, 24: 2763-2767. doi: 10.3788/HPLPB20122411.2763

Citation:

Qiu Jiaqi, Chen Huaibi, Tang Chuanxiang, et al. Space charge distribution in magnetrons[J]. High Power Laser and Particle Beams, 2013, 25: 477-480. doi: 10.3788/HPLPB20132502.0477

Citation:

Qiu Jiaqi, Chen Huaibi, Tang Chuanxiang, et al. Space charge distribution in magnetrons[J]. High Power Laser and Particle Beams, 2013, 25: 477-480. doi: 10.3788/HPLPB20132502.0477

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Space charge distribution in magnetrons

doi: 10.3788/HPLPB20132502.0477

Qiu Jiaqi^{1,2
,
,},
Chen Huaibi^1,2,
Tang Chuanxiang^1,2,
Du Yingchao^1,2

1.
Accelerator Laboratory,Department of Engineering Physics,Tsinghua University,Beijing 100084,China;
2.
Key Laboratory of Particle and Radiation Imaging of Ministry of Education, Tsinghua University,Beijing 100084,China

Received Date: 2012-04-17
Rev Recd Date: 2012-06-21
Publish Date: 2013-02-10

Abstract

Abstract

Some models of the space charge in magnetrons are reviewed. PIC simulations are taken on X band magnetrons to compare with the theory analysis. The Brilliouns theory is effective in getting the height and density of the hub, but it is difficult to explain charge density at the edge of the hub for the Brillouins theory uses single-particle motion theory. There is discrepancy in spoke density with all these theories. The difference of the charge density at the edge of the hub is assumed to be the reason for the discrepancy. Approaches to maintain spoke density in magnetrons are proposed according to the guiding center fluid theory in S.Riyopoulos work.
- PIC simulation,
- Brillouin density,
- guiding center,
- space charge,
- single-particle motion

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