强激光与粒子束, 2020, 32 (2): 025018, 网络出版: 2020-03-18   

1 MV X光机系统可靠性实验研究

Experimental research on reliability of 1 MV X-ray system for radiography
作者单位
中国工程物理研究院 流体物理研究所,脉冲功率科学与技术重点实验室,四川 绵阳 621900
摘要
参考“天蝎-Ι”原型机,重新设计了1 MV X光机系统,根据技术指标可靠性要求,对Marx发生器、场畸变开关、脉冲传输线、脉冲形成线及二极管等进行了可靠性设计。针对新设计的1 MV X光机系统,对其可靠性进行了实验研究,包含1 MV X光机系统的时间抖动和出光剂量稳定性等,根据调试实验结果制定1 MV X光机系统操作规程,按照规程对1 MV X光机系统进行了可靠性考核,连续工作81发次,最大时间抖动为146 ns,剂量为0.75~1.40 R @1 m,满足总体技术指标要求,可靠度达到98%。
Abstract
Referring to the Scorpio-1 prototype, the 1 MV X-ray system for radiography was redesigned. According to the reliability requirements, it has a reliability design of the system elements, including Marx generator, field distortion switch, pulse forming line, pulse transmission line and rod-pinch diode. Moreover, the experimental tests on the reliability of the system, including time jitter and stability of X-ray, were performed. According to the experimental results, the system operates stable and continuous outputs more than 81 shots. The following technical parameters of the system were achieved: time jitter less than 146 ns, X-ray dose 0.75?1.40 R at 1 m right in front of the system and reliability up to 98%.

马成刚, 李洪涛, 邓明海, 曹宁翔, 莫腾富, 王晓, 张志强. 1 MV X光机系统可靠性实验研究[J]. 强激光与粒子束, 2020, 32(2): 025018. Chenggang Ma, Hongtao Li, Minghai Deng, Ningxiang Cao, Tengfu Mo, Xiao Wang, Zhiqiang Zhang. Experimental research on reliability of 1 MV X-ray system for radiography[J]. High Power Laser and Particle Beams, 2020, 32(2): 025018.

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