Chinese Physics C > 2006, Vol. 30 > Issue(S1): 147-149

The Physical Design Research of new extraction System for SFC

Institute of Morden Physics, CAS, Lanzhou 730000, China

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Abstract：
The HIRFL (Heavy Ion Research Facility at Lanzhou) is a cyclotron complex. Its injector is a cector focusing cyclotron with K=69. Since the HIRFL started the operation in 1989, two bigger items of improvements have been finished, the species and intensity of the accelerated particles are increased obviously. But due to the lower extraction efficiency of the SFC, on one hand, a lot of beam lost, and on other hand, outgas from the surface of the electrostatic deflector is serious because of beam hitting. Even sometimes the vacuum press is destroyed. In the paper a new physical design is made to get an extraction system of the SFC with a higher efficiency.

References

[1]

. WANG Y F. Designing Calculation of Injection and Extrac-tion System of SSC. In: Proceedings of the Third Japan-China Joint Symposium on Accelerators for Nuclear Sci-ence and Their Applications. 1986, 181—1832. Goto A, Hatanaka K, Ikegami K et al. Injector AVF Cy-clotron for RIKEN Ring Cyclotron. In: RIKEN AcceleratorProgress Report. 1987, 21: 210—211

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WANG Yi-Fang, WANG Bing and LI Bing-Sheng. The Physical Design Research of new extraction System for SFC[J]. Chinese Physics C, 2006, 30(S1): 147-149.

WANG Yi-Fang, WANG Bing and LI Bing-Sheng. The Physical Design Research of new extraction System for SFC[J]. Chinese Physics C, 2006, 30(S1): 147-149. shu

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Received: 2005-12-07
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 Physical Design Research of new extraction System for SFC

Corresponding author:WANG Yi-Fang,

Institute of Morden Physics, CAS, Lanzhou 730000, China

Received Date:2005-12-07
Accepted Date:1900-01-01
Available Online:2006-01-04

Abstract:The HIRFL (Heavy Ion Research Facility at Lanzhou) is a cyclotron complex. Its injector is a cector focusing cyclotron with K=69. Since the HIRFL started the operation in 1989, two bigger items of improvements have been finished, the species and intensity of the accelerated particles are increased obviously. But due to the lower extraction efficiency of the SFC, on one hand, a lot of beam lost, and on other hand, outgas from the surface of the electrostatic deflector is serious because of beam hitting. Even sometimes the vacuum press is destroyed. In the paper a new physical design is made to get an extraction system of the SFC with a higher efficiency.