Coupling Effect of Solenoid in CSRm

Zhou Xue-Mei; XIA Jia-Wen; YUAN You-Jin; WU Jun-Xia; YANG Jian-Cheng; LIU Yong; LIU Wei; Mao Li-Jun; ZHOU Jun

Chinese Physics C> 2006, Vol. 30> Issue(5) : 462-465

Coupling Effect of Solenoid in CSRm

Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate School, Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
The principle of particle coupling between horizontal and vertical directions in solenoid is presented. Further more, the method of decoupling can be obtained by using the coupling dynamic equations. 5000 particles are tracked under three conditions: CSRm doesn't contain solenoids, contains main solenoid and toroids, contains compensating solenoids. The results of the particle trace calculations show that the particles coupling between horizontal and vertical is very serious because of the existence of solenoids, and lots of particals are lost. Another two solenoids which locate in the fit place can be used to decrease the coupling intensation. The method is proved to be useful by the trace calculations.

References

[1]

. Christoph Iselin F. The MAD Program Physical Methods Manual. 8.13. Switzerland: European Organization for Nuclear Research, 1994. 282. Guignard G. Betatron Coupling and Related Impact of Radiation. Geneva: CERN European Organization for Nu-clear Research, 1995. 433. Métral E. CERN/PS, 2001, 066(AE): 14. Guignard G. The General Theory of all Sum and Di erence Resonances in a Three-Dimensional Magnetic Field ina Synchrotron. Geneva: CERN, 1976. 65. XIA J W, ZHAN W L, WEI B Wet al. Nuclear Instruments and Methods in Physics Research, 2002, A488: 16. Hans Grote, Christoph Iselin F. The MAD Program (Me-thodical Accelerator Design). Switzerland: European Organization for Nuclear Research, 1996. 115

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Zhou Xue-Mei, XIA Jia-Wen, YUAN You-Jin, WU Jun-Xia, YANG Jian-Cheng, LIU Yong, LIU Wei, Mao Li-Jun and ZHOU Jun. Coupling Effect of Solenoid in CSRm[J]. Chinese Physics C, 2006, 30(5): 462-465.

Zhou Xue-Mei, XIA Jia-Wen, YUAN You-Jin, WU Jun-Xia, YANG Jian-Cheng, LIU Yong, LIU Wei, Mao Li-Jun and ZHOU Jun. Coupling Effect of Solenoid in CSRm[J]. Chinese Physics C, 2006, 30(5): 462-465. shu

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Received: 2005-07-18
Revised: 2006-01-23

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沈阳化工大学材料科学与工程学院沈阳 110142

Coupling Effect of Solenoid in CSRm

Corresponding author: Zhou Xue-Mei,

Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, China2 Graduate School, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2005-07-18
Accepted Date: 2006-01-23
Available Online: 2006-05-05

Abstract: The principle of particle coupling between horizontal and vertical directions in solenoid is presented. Further more, the method of decoupling can be obtained by using the coupling dynamic equations. 5000 particles are tracked under three conditions: CSRm doesn't contain solenoids, contains main solenoid and toroids, contains compensating solenoids. The results of the particle trace calculations show that the particles coupling between horizontal and vertical is very serious because of the existence of solenoids, and lots of particals are lost. Another two solenoids which locate in the fit place can be used to decrease the coupling intensation. The method is proved to be useful by the trace calculations.