An emittance measurement device for a space-charge dominated electron beam

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 thick...

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Bibliographic Details
Published inChinese physics C Vol. 36; no. 9; pp. 867 - 870
Main Author 王文静 黄森林 全胜文 林林 刘克新
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
Beams (radiation)
Devices
Electron beams
Electron sources
Emittance
Injectors
Photocathodes
Slits
光阴极注入器
北京大学
发射度
发射率
控制
测量装置
电子束
空间电荷
Online AccessGet full text
ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/36/9/013

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Summary: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 ~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.
Bibliography:emittance measurement, multi-slit, space charge effect, DC-SC photocathode injector
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 ~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.
WANG Wen-Jing HUANG Sen-Lin QUAN Sheng-Wen LIN Lin LIU Ke-Xin（State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China）
11-5641/O4
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/36/9/013