Design of double-anode magnetic injection with low velocity spread

Hu Peng; Sun Dimin; Jiang Yi; Chen Hongbin; Meng Fanbao

doi:10.3788/HPLPB20132503.0671

Volume 25 Issue 03

Mar. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(03): 671-674

Zhang Xiao, Liu Wenguang. Influence of gain module aspect ratio on output power and extraction efficiency[J]. High Power Laser and Particle Beams, 2012, 24: 1033-1037. doi: 10.3788/HPLPB20122405.1033

Citation:

Hu Peng, Sun Dimin, Jiang Yi, et al. Design of double-anode magnetic injection with low velocity spread[J]. High Power Laser and Particle Beams, 2013, 25: 671-674. doi: 10.3788/HPLPB20132503.0671

Zhang Xiao, Liu Wenguang. Influence of gain module aspect ratio on output power and extraction efficiency[J]. High Power Laser and Particle Beams, 2012, 24: 1033-1037. doi: 10.3788/HPLPB20122405.1033

Citation:

Hu Peng, Sun Dimin, Jiang Yi, et al. Design of double-anode magnetic injection with low velocity spread[J]. High Power Laser and Particle Beams, 2013, 25: 671-674. doi: 10.3788/HPLPB20132503.0671

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Design of double-anode magnetic injection with low velocity spread

doi: 10.3788/HPLPB20132503.0671

1.
Institute of Applied Electronics,CAEP,P.O.Box 919-1016,Mianyang 621900,China;
2.
Graduate School of China Academy of Engineering Physics,Mianyang 621900,China

Received Date: 2012-06-19
Rev Recd Date: 2012-09-25
Publish Date: 2013-03-05

Abstract

Abstract

A double-anode magnetic injection gun (MIG) was designed to satisfy demands of the 0.14 THz confocal gyro-travelling-wave tube (TWT). According to analytic trade-off equations, the initial parameters were determined first, then simulations and refinement were done with the PIC software. As a result, the horizontal-to-vertical velocity ratio of this MIG is 0.75, the axial velocity spread is 1.33%. The effect of some parameters, such as electrode shape, cathode magnetic field, mod-anode voltage and beam current on electron beam performance was discussed. The results indicate, all the parameters should be optimized sufficiently.
- terahertz,
- gyro-travelling-wave tube,
- double-anode magnetic injection gun,
- horizontal-to-vertical velocity ratio,
- velocity spread

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