Design study for a 500 MeV proton synchrotron with CSNS linac as an injector

Liang-Sheng Huang; Hong-Fei Ji; Sheng Wang

doi:10.1088/1674-1137/40/9/097003

Chinese Physics C> 2016, Vol. 40> Issue(9) : 097003 DOI: 10.1088/1674-1137/40/9/097003

Design study for a 500 MeV proton synchrotron with CSNS linac as an injector

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Abstract：
Using the China Spallation Neutron Source (CSNS) linac as the injector, a 500 MeV proton synchrotron is proposed for multidisciplinary applications, such as biology, material science and proton therapy. The synchrotron will deliver proton beam with energy from 80 MeV to 500 MeV. A compact lattice design has been worked out, and all the important beam dynamics issues have been investigated. The 80 MeV H^- beam is stripped and injected into the synchrotron by using multi-turn injection. In order to continuously extraction the proton with small beam loss, an achromatic structure is proposed and a slow extraction method with RF knock-out is adopted and optimized.
- CSNS ,
- proton synchrotron ,
- multi-turn injection ,
- slow extraction ,
- RF knock-out

References

[1]	D. Trbojevic et al, Lattice Design of the Rapid Cycling Medical Synchrotron for Carbon/Proton Therapy, in Proceeding of IPAC'11 (San Sebastian, Spain, 2011), 2541
[2]	Accelerator Complex Study Group, Proton-ion Medical Machine Study (PIMMS) Part I, CERN/PS 99-010(1999), 1-139
[3]	Kazuo Hiramoto, Nuclear Instruments and Methods in Physics Research B, 261:786-790(2007)
[4]	J. Radiat. Res., 48:Suppl. A, 43-54:43-54(2007)
[5]	S. Rossi, Development of Proton and Light-ion Therapy, in Proceedings of EPAC' 06 (Edinburgh, Scotland, 2006), p.3631
[6]	J. Lagniel, Status of the Hadrontherapy Projects in Europe, in Proceedings of PAC' 07 (Albuquerque, New Mexico, 2007), p.127
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[8]	S. Wang et al, Scientific China Physics M A, 54:239(2011)
[9]	Physics Design and Technology Development of CSNS Accelerator, 2m nd CSNS International ATAC Review Report (IHEP, Beijing, China, 2010), p.29
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[11]	W. Hardt, Ultraslow extraction out of LEAR (transverse aspects), CERN Internal Note PS/DL/LEAR Note (1981), p.81-6

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Liang-Sheng Huang, Hong-Fei Ji and Sheng Wang. Design study for a 500 MeV proton synchrotron with CSNS linac as an injector[J]. Chinese Physics C, 2016, 40(9): 097003. doi: 10.1088/1674-1137/40/9/097003

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Received: 2016-04-12
Revised: 2016-04-29

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沈阳化工大学材料科学与工程学院沈阳 110142

Design study for a 500 MeV proton synchrotron with CSNS linac as an injector

Corresponding author: Sheng Wang,

Received Date: 2016-04-12
Accepted Date: 2016-04-29
Available Online: 2016-09-05

Abstract: Using the China Spallation Neutron Source (CSNS) linac as the injector, a 500 MeV proton synchrotron is proposed for multidisciplinary applications, such as biology, material science and proton therapy. The synchrotron will deliver proton beam with energy from 80 MeV to 500 MeV. A compact lattice design has been worked out, and all the important beam dynamics issues have been investigated. The 80 MeV H^- beam is stripped and injected into the synchrotron by using multi-turn injection. In order to continuously extraction the proton with small beam loss, an achromatic structure is proposed and a slow extraction method with RF knock-out is adopted and optimized.