Study on Extraction System for High Current ECR Ion Source

WANG Yun; CHEN Zhi; ZHAO Hongwei; ZHAO Yangyang; SUN Liangting; YANG Yao; QIAN Cheng; WU Qi; MA Hongyi; ZHANG Wenhui; ZHANG Zimin; ZHANG Xuezhen; LIU Zhanwen

doi:10.11804/NuclPhysRev.30.02.141

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Volume 30 Issue 2

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Article Navigation > Nuclear Physics Review > 2013 > 30(2): 141-146

WANG Yun, CHEN Zhi, ZHAO Hongwei, ZHAO Yangyang, SUN Liangting, YANG Yao, QIAN Cheng, WU Qi, MA Hongyi, ZHANG Wenhui, ZHANG Zimin, ZHANG Xuezhen, LIU Zhanwen. Study on Extraction System for High Current ECR Ion Source[J]. Nuclear Physics Review, 2013, 30(2): 141-146. doi: 10.11804/NuclPhysRev.30.02.141

Citation:

WANG Yun, CHEN Zhi, ZHAO Hongwei, ZHAO Yangyang, SUN Liangting, YANG Yao, QIAN Cheng, WU Qi, MA Hongyi, ZHANG Wenhui, ZHANG Zimin, ZHANG Xuezhen, LIU Zhanwen. Study on Extraction System for High Current ECR Ion Source[J]. Nuclear Physics Review, 2013, 30(2): 141-146. doi: 10.11804/NuclPhysRev.30.02.141

Study on Extraction System for High Current ECR Ion Source

doi: 10.11804/NuclPhysRev.30.02.141

School of Nuclear Science and Technology, University of Sciences and Technology of China, Hefei 230027, China;
University of Chinese Academy of Sciences, Beijing 100049, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-06-20

Abstract

To improve the quality of extracted ion beam from a high current ECR ion source, 1# and 2# extraction systems were designed and tested. The PBGUNS code was used to simulate the 1# and 2# extraction systems of proton ion beam. The emittance measurement results with the two different extraction systems were compared and analyzed with the simulation, the conclusion that more high quality beam extracted from 2# system than 1# system was got. The formula derivation of ECR ion source extraction system spherical aberration and MATLAB drawing was done by the analyzing on the distribution of extraction field equipotentials, effective emittance increasing caused by spherical berration was proved by 1# and 2# extraction systems beam phase space simulation result, beam focusing would be improved if electrode hole size increasing appropriately and a general concept on good optics focusing of ion beam extraction system was proposed finally.
- ECR,
- ion beam extraction system,
- distribution of equipotential,
- spherical aberration
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Extraction System for High Current ECR Ion Source

doi: 10.11804/NuclPhysRev.30.02.141

School of Nuclear Science and Technology, University of Sciences and Technology of China, Hefei 230027, China;

University of Chinese Academy of Sciences, Beijing 100049, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-06-20

Key words:

Abstract: To improve the quality of extracted ion beam from a high current ECR ion source, 1# and 2# extraction systems were designed and tested. The PBGUNS code was used to simulate the 1# and 2# extraction systems of proton ion beam. The emittance measurement results with the two different extraction systems were compared and analyzed with the simulation, the conclusion that more high quality beam extracted from 2# system than 1# system was got. The formula derivation of ECR ion source extraction system spherical aberration and MATLAB drawing was done by the analyzing on the distribution of extraction field equipotentials, effective emittance increasing caused by spherical berration was proved by 1# and 2# extraction systems beam phase space simulation result, beam focusing would be improved if electrode hole size increasing appropriately and a general concept on good optics focusing of ion beam extraction system was proposed finally.

Citation:

WANG Yun, CHEN Zhi, ZHAO Hongwei, ZHAO Yangyang, SUN Liangting, YANG Yao, QIAN Cheng, WU Qi, MA Hongyi, ZHANG Wenhui, ZHANG Zimin, ZHANG Xuezhen, LIU Zhanwen. Study on Extraction System for High Current ECR Ion Source[J]. Nuclear Physics Review, 2013, 30(2): 141-146. doi: 10.11804/NuclPhysRev.30.02.141