Physics design of undulator in high average power free electronic laser terahertz source

Yan Longgang; Deng Derong; Dou Yuhuan; Li Ming; Yang Xingfan

Volume 25 Issue S0

Jun. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(S0): 153-157

cao bai ling, wu cheng jiu, rao rui zhong, et al. Atmospheric attenuation of the HF and DF laser radiation[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

Yan Longgang, Deng Derong, Dou Yuhuan, et al. Physics design of undulator in high average power free electronic laser terahertz source[J]. High Power Laser and Particle Beams, 2013, 25: 153-157.

cao bai ling, wu cheng jiu, rao rui zhong, et al. Atmospheric attenuation of the HF and DF laser radiation[J]. High Power Laser and Particle Beams, 2003, 15.

Citation:

Yan Longgang, Deng Derong, Dou Yuhuan, et al. Physics design of undulator in high average power free electronic laser terahertz source[J]. High Power Laser and Particle Beams, 2013, 25: 153-157.

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Physics design of undulator in high average power free electronic laser terahertz source

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

Received Date: 2012-10-18
Rev Recd Date: 2013-04-07
Publish Date: 2013-05-15

Abstract

Abstract

The physics design of the undulator in high average power free electronic laser terahertz source is discussed. Hybrid Halbach structure is selected, after the period length, period quantity and peak magnetic field strength, etc. are fixed. The dimension of permanent magnet block is 8 cm1.3 cm6 cm, and the dimension of pole is 5 cm0.6 cm4.8 cm. The gap of the undulator is variable. While the gap range is 1.81-3.05 cm, the range of peak magnetic field strength is 0.529-0.184 T, and the length of good field area is 3.02-2.13 cm. Meanwhile, as the error of undulator magnetic field has effect on free electronic laser, the tolerances of undulator parameters are brought in, and the end design of the undulator is discussed at last.
- free electronic laser,
- undulator,
- terahertz source,
- high average power

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