| Study of multipacting effect in sub-harmonic buncher of SSRF linac |
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| 作者姓名： | 张猛 赵明华 汪宝亮 |
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| 作者单位： | 1 Shanghai Institute of Applied Physics, CAS, Shanghai 201800, China;2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | Supported by SSRF Project |
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| 摘 要： | During the design process, multipacting effect has been taken into consideration using a 2D simulation code MultiPac and all of the corners are rounded to suppress the multipacting effect in the pill-box cavity. However, unexpected multipacting effect prevents the increase of the input power when the magnetic field of focusing coils is added after adequate conditioning and a novel method is adopted to suppress it by introducing extra coils to counteract the field. This paper focuses on the simulation of multipacting effect in different magnetic field configurations. The experimental observations and simulation results of multipacting effect are presented and details of the multipacting process are also analyzed.
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| 关 键 词： | sub-harmonic buncher multipacting effect 3D simulation coil compensation method |
| 收稿时间： | 2009-1-6 |
Study of multipacting effect in sub-harmonic buncher of SSRF linac |
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| Institution: | Shanghai Institute of Applied Physics;CAS;Shanghai 201800;China;Graduate University of Chinese Academy of Sciences;Beijing 100049;China |
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| Abstract: | During the design process, multipacting effect has been taken into consideration using a 2D simulation code MultiPac and all of the corners are rounded to suppress the multipacting effect in the pill-box cavity. However, unexpected multipacting effect prevents the increase of the input power when the magnetic field of focusing coils is added after adequate conditioning and a novel method is adopted to suppress it by introducing extra coils to counteract the field. This paper focuses on the simulation of mul... |
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| Keywords: | sub-harmonic buncher multipacting effect 3D simulation coil compensation method |
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