The Influence of the Edge Field of Magnets on Beam Injection

YUAN You-Jin; WU Jun-Li; WANG Yi-Guo; XU Xiang-Yang

Chinese Physics C> 2001, Vol. 25> Issue(1) : 57-60

The Influence of the Edge Field of Magnets on Beam Injection

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
Because of the large emittance and momentum spread of injection beam, the edge field of magnets will affect beam optic property during injection into the experimental ring of HIRFL-CSR (Heavy ion Research Facility in Lanzhou-Cooling Storage Ring). The influence of edge field is probed in this paper by numeric tracking of particles through it. The influence is reduced to tolerable range by modifying injection central orbit and field distribution of the magnet.

References

[1]	XIA Jia–Wen, YUAN Youjin et al. Preliminary Design of HIRFL–CSR Project, Institute of Modern Physics, The Chinese Academy of Sciences,1999 (in Chinese) (夏佳文,原有进等.兰州重离子加速器冷却储存环工程初步设计,中国科学院近代物理研究所,1999)

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YUAN You-Jin, WU Jun-Li, WANG Yi-Guo and XU Xiang-Yang. The Influence of the Edge Field of Magnets on Beam Injection[J]. Chinese Physics C, 2001, 25(1): 57-60.

YUAN You-Jin, WU Jun-Li, WANG Yi-Guo and XU Xiang-Yang. The Influence of the Edge Field of Magnets on Beam Injection[J]. Chinese Physics C, 2001, 25(1): 57-60. shu

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Received: 1999-11-08
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

The Influence of the Edge Field of Magnets on Beam Injection

Corresponding author: YUAN You-Jin,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 1999-11-08
Accepted Date: 1900-01-01
Available Online: 2001-01-05

Abstract: Because of the large emittance and momentum spread of injection beam, the edge field of magnets will affect beam optic property during injection into the experimental ring of HIRFL-CSR (Heavy ion Research Facility in Lanzhou-Cooling Storage Ring). The influence of edge field is probed in this paper by numeric tracking of particles through it. The influence is reduced to tolerable range by modifying injection central orbit and field distribution of the magnet.