| Design of Smith-Purcell emitter in femtosecond accelerator |
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| 作者姓名： | 卑华 林栩凌 戴志敏 |
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| 作者单位： | Shanghai Institute of Applied Physics，Chinese Academy of Sciences，Graduate University of Chinese Academy of Sciences |
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| 摘 要： | Based on the femtosecond accelerator device, we are planning to build a broad band and tunable THz source using the Smith-Purcell radiation mechanism. Coherent Smith-Purcell radiation could be achieved owing to the super-short bunch produced in the device. To shorten the distance between the beam and grating, we use Transport to match the beta function producing a sheet beam on the grating surface. The optimization of grating length, groove depth and groove width are given in the paper. Then the radiation power for the shallow and deep grating using these parameters are presented. The detection devices and methods are also briefly discussed.
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| 关 键 词： | THz source Smith-Purcell radiation coherence optimization |
| 收稿时间： | 2008-3-5 |
| 修稿时间： | 2008-4-10 |
Design of Smith-Purcell emitter in femtosecond accelerator |
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| BEI Hua, LIN Xu-Ling, DAI Zhi-Min,.Design of Smith-Purcell emitter in femtosecond accelerator[J].High Energy Physics and Nuclear Physics,2008,32(12):1007-1011. |
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| Authors: | BEI Hua LIN Xu-Ling DAI Zhi-Min |
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| Institution: | BEI Hua1,2,1) LIN Xu-Ling1,2 DAI Zhi-Min1,2) 1 |
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| Abstract: | Based on the femtosecond accelerator device, we are planning to build a broad band and tunable THz source using the Smith-Purcell radiation mechanism. Coherent Smith-Purcell radiation could be achieved owing to the super-short bunch produced in the device. To shorten the distance between the beam and grating, we use Transport to match the beta function producing a sheet beam on the grating surface. The optimization of grating length, groove depth and groove width are given in the paper. Then the radiation power for the shallow and deep grating using these parameters are presented. The detection devices and methods are also briefly discussed. |
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| Keywords: | THz source Smith-Purcell radiation coherence optimization |
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