上海质子治疗装置动态电源控制系统

doi:10.11889/j.0253-3219.2018.hjs.41.020404

Nuclear Techniques ›› 2018, Vol. 41 ›› Issue (2): 20404-020404.doi: 10.11889/j.0253-3219.2018.hjs.41.020404

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles Next Articles

Dynamic power supply controls in Shanghai proton therapy facility

JIANG Geyang, TAN Songqing, ZHAO Huan, CHEN Guanghua

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China

Received:2017-09-19 Revised:2017-10-09 Online:2018-02-10 Published:2018-02-06
Supported by:
Supported by Research and Development of Synchrotron Proton Radiotherapy System, Ministry of Science and Technology of China(No.2016YFC0105401)

Abstract

Abstract: [Background] Shanghai proton therapy facility is the first therapy machine developed in China by Shanghai Institute of Applied Physics, Chinese Academy of Sciences, in which the injector produces different energy proton beams to satisfy requirements of therapy. And the orbit of different beams is constrained by the dynamic power supplies and magnets located on accelerator's main ring. [Purpose] This study aims to design a new top-level control system based on traditional static power supply control technology to avoid eddy current's disturbance during magnetic field changing. [Methods] The PCASpy module under the framework of EPICS (Experimental Physics and Industrial Control System) is employed to design the framework. By transferring of pre-defined current data with high speed and intelligent control technology, the problem of eddy current's disturbance is solved affirmatively. [Results and Conclusion] This control system has been tested and verified by accelerator main ring's commissioning.

Key words: Proton therapy, Dynamic power supply, PCASpy, EPICS

CLC Number:

TL99

JIANG Geyang, TAN Songqing, ZHAO Huan, CHEN Guanghua. Dynamic power supply controls in Shanghai proton therapy facility[J].Nuclear Techniques, 2018, 41(2): 20404-020404.

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Dynamic power supply controls in Shanghai proton therapy facility

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