| 高亮度虚火花电子束发射度的测量 |
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| 引用本文： | 黄羽,王明常.高亮度虚火花电子束发射度的测量[J].光学学报,1996,16(10):493-1496. |
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| 作者姓名： | 黄羽 王明常 |
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| 作者单位： | 中国科学院上海光学精密机械研究所 |
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| 摘 要： | 介绍了对一台脉冲线加速器驱动虚火花放电装置产的电子束发射度的测量工作。在十隙虚火花放电室中育以１５Ｐａ的氮气，产生能量为约２００ｋｅＶ，束流２０００Ａ，直径为１ｍｍ和高亮度电子束。在距阳极５ｃｍ处测得电子束的均方根发射度εｒｍｓ≈４８ｍｍ．ｍｒａｄ，规一化发射率εｎ≈４７ｍｍ．ｍｒａｄ。
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| 关 键 词： | 虚火花放电 发射度 自由电子激光器 电子束 |
| 收稿时间： | 1995/7/18 |
Emittance Measurement of a High Brightness Pseudospark Produced Electron Beam |
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| Huang Yu,Wang Mingchang,Zhang Lifen,Lu Bin,Feng Chengshi,Zhou Huifen.Emittance Measurement of a High Brightness Pseudospark Produced Electron Beam[J].Acta Optica Sinica,1996,16(10):493-1496. |
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| Authors: | Huang Yu Wang Mingchang Zhang Lifen Lu Bin Feng Chengshi Zhou Huifen |
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| Abstract: | We report the emittance measurement of a electron beam produced in a pseudospark discharge device driven by a pulse line accelerator. A ten gap pseudospark device was operated at 200 kV, with anitrogen gas fill presure of 15 Pa. Small diameter (～1 mm) electron beam with current about 2 kA has been generated. The rms emittance of the beam is measured to be ε rms ≈ 48 mm·mrad about 5 cm downstream of the anode plane. The normalized emittance is then found to be ε n≈ 47 mm·mrad. |
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| Keywords: | pseudospark discharge emittance |
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