Influence of beam emittance on performance of FWG-TWT

Zhang Fang; Dong Zhiwei; Dong Ye; Sun Huifang; Yang Wenyuan

doi:10.3788/HPLPB20132506.1450

Volume 25 Issue 06

Apr. 2013

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(06): 1450-1454

Zhang Fang, Dong Zhiwei, Dong Ye, et al. Influence of beam emittance on performance of FWG-TWT[J]. High Power Laser and Particle Beams, 2013, 25: 1450-1454. doi: 10.3788/HPLPB20132506.1450

Citation:

Zhang Fang, Dong Zhiwei, Dong Ye, et al. Influence of beam emittance on performance of FWG-TWT[J]. High Power Laser and Particle Beams, 2013, 25: 1450-1454. doi: 10.3788/HPLPB20132506.1450

Zhang Fang, Dong Zhiwei, Dong Ye, et al. Influence of beam emittance on performance of FWG-TWT[J]. High Power Laser and Particle Beams, 2013, 25: 1450-1454. doi: 10.3788/HPLPB20132506.1450

Citation:

Zhang Fang, Dong Zhiwei, Dong Ye, et al. Influence of beam emittance on performance of FWG-TWT[J]. High Power Laser and Particle Beams, 2013, 25: 1450-1454. doi: 10.3788/HPLPB20132506.1450

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Influence of beam emittance on performance of FWG-TWT

doi: 10.3788/HPLPB20132506.1450

Zhang Fang^{1,2
,
,},
Dong Zhiwei^1,2,
Dong Ye^1,2,
Sun Huifang^1,2,
Yang Wenyuan^1,2

1.
Institute of Applied Physics and Computational Mathematics,Beijing 100094,China; 2.Terahertz Research Center,China Academy of Engineering Physics,Mianyang 621900,China

Received Date: 2012-09-29
Rev Recd Date: 2012-11-27
Publish Date: 2013-04-08

Abstract

Abstract

Through theoretical analysis and PIC simulation, beam emittances of 140, 220 and 345 GHz FWG-TWTs are studied. The relationships of beam emittance with frequency, structure size and even the related parameters of electron beam are summarized. It is shown that beam emittance is an important parameter determining the design of focusing magnetic field in the terahertz band.
- terahertz,
- folded waveguide traveling-wave tube,
- emittance,
- electron beam,
- pass rate