| An emittance measurement device for a space-charge dominated electron beam |
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| 作者姓名： | 王文静 黄森林 全胜文 林林 刘克新 |
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| 作者单位： | State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China |
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| 基金项目： | Supported by Major State Basic Research Development Program of China (2011CB808302);Peking University grant for interdisciplinary or developing disciplinary studies |
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| 摘 要： | Beam emittance is one of the most important parameters for electron sources. To investigate the beam emittance of the 3.5-cell DC-SC photocathode injector developed at Peking University, a multi-slit emittance measurement device has been designed and manufactured. The designed slit width, mask thickness and beamlet drift length are 100 μ m, 3 mm and 430 mm respectively. It is suitable for the electron beam with energy of about 5 MeV and the average current less than 0.1 mA. The preliminary measurement result of the rms emittance of the electron beam produced by the DC-SC injector is about 5-7 mm·mrad.
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| 关 键 词： | emittance measurement multi-slit space charge effect DC-SC photocathode injector |
| 收稿时间： | 2011-11-2 |
An emittance measurement device for a space-charge dominated electron beam |
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| WANG Wen-Jing,HUANG Sen-Lin QUAN Sheng-Wen LIN Lin LIU Ke-Xin.An emittance measurement device for a space-charge dominated electron beam[J].High Energy Physics and Nuclear Physics,2012,36(9):867-870. |
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| Authors: | WANG Wen-Jing HUANG Sen-Lin QUAN Sheng-Wen LIN Lin LIU Ke-Xin |
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| Institution: | 2) State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China |
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| Abstract: | Beam emittance is one of the most important parameters for electron sources.To investigate the beam emittance of the 3.5-cell DC-SC photocathode injector developed at Peking University,a multi-slit emittance measurement device has been designed and manufactured.The designed slit width,mask thickness and beamlet drift length are 100 μm,3 mm and 430 mm respectively.It is suitable for the electron beam with energy of about 5 MeV and the average current less than 0.1 mA.The preliminary measurement result of the rms emittance of the electron beam produced by the DC-SC injector is about 5-7 mm · mrad. |
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| Keywords: | emittance measurement multi-slit space charge effect DC-SC photocathode injector |
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