Influence of dipole and quadrupole power ripple on slow extraction for XIPAF

Zhang Qi; Zheng Shuxin; Li Guangrui; Yao Hongjuan; Guan Xialing; Huang Wenhui; Wang Xuewu

doi:10.11884/HPLPB201830.170438

Volume 30 Issue 8

Aug. 2018

Turn off MathJax

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2018 > 30(8): 085101

Zhang Qi, Zheng Shuxin, Li Guangrui, et al. Influence of dipole and quadrupole power ripple on slow extraction for XIPAF[J]. High Power Laser and Particle Beams, 2018, 30: 085101. doi: 10.11884/HPLPB201830.170438

Citation:

Zhang Qi, Zheng Shuxin, Li Guangrui, et al. Influence of dipole and quadrupole power ripple on slow extraction for XIPAF[J]. High Power Laser and Particle Beams, 2018, 30: 085101. doi: 10.11884/HPLPB201830.170438

Citation:

PDF( 1199 KB)

Influence of dipole and quadrupole power ripple on slow extraction for XIPAF

doi: 10.11884/HPLPB201830.170438

Zhang Qi^{1, 2, 3
,},
Zheng Shuxin^{1, 2, 3
,
,},
Li Guangrui^{1, 2, 3},
Yao Hongjuan^{1, 2, 3},
Guan Xialing^{1, 2, 3},
Huang Wenhui^{1, 2, 3},
Wang Xuewu^{1, 2, 3}

1.
Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing 100084, China
2.
Laboratory for Advanced Radiation Sources and Application, Tsinghua University, Beijing 100084, China
3.
Department of Engineering Physics, Tsinghua University, Beijing 100084, China

Received Date: 2017-11-06
Rev Recd Date: 2018-04-19
Publish Date: 2018-08-15

Abstract

Abstract

The third resonant slow extraction and RF-knockout technology was adopted for Xi'an Proton Application Facility (XIPAF), which was designed for proton single event effects research.The influence of dipole and quadrupole power ripple on extracted spill was explored theoretically and simulated via TrackAll.According to a series of simulation results, ΔI/I_set≤1.2×10^-4 for the quadrupole-focusing power converter, ΔI/I_set≤2×10^-3 for the quadrupole defocusing converter andΔI/I_set≤4×10^-4 for the dipole converter are acceptable, whereΔI represents the variance of the ouput current caused by power ripple and I_set represents the standard value of the output current without ripple.Since the synchrotron's power converters in XIPAF satisfy the same standard in terms of power ripple, it is confirmed thatΔI/I_setshould be limited to 1×10^-4 for all power converters.
- RF-KO,
- power supply ripple,
- slow extraction

FullText(HTML)

References(7)

References

[1]	Zheng Shuxin, Xing Qingzi, Guan Xialing, et al. Design of the 230 MeV proton accelerator for Xi'an Proton Application Facility[C]//Proceedings of HB. 2016: 55-58.
[2]	Noda K, Kanazawa M, Itano A, et al. Slow beam extraction by a transverse RF field with AM and FM[J]. Nuclear Instruments and Methods in Physics Research Section A, 1996, 374(2): 269-277.
[3]	李光锐. TrackAll——一套质子同步加速器束流动力学模拟框架[C]//第二届全国辐射物理学术交流会. 2016. Li Guangrui. TrackAll——A framework for simulation on beam dynamics of synchrotron[C]//Proc of CRPS. 2016
[4]	Noda K, Furukawa T, Shibuya S, et al. Advanced RF-KO slow-extraction method for the reduction of spill ripple[J]. Nuclear Instruments & Methods in Physics Research A, 2002, 492(1/2): 253-263.
[5]	Furukawa T, Noda K, Muramatsu M, et al. Global spill control in RF-knockout slow-extraction[J]. Nuclear Instruments & Methods in Physics Research A, 2004, 522(3): 196-204.
[6]	Badano L, Crescenti M, Holy P, et al. Proton-ion medical machine study (PIMMS), 1[R]. CERN-PS-99-010-DI, 1999.
[7]	Lee S Y. Accelerator physics[M]. Shanghai: Fudan University Press, 2006.