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基于光导开关的固态脉冲功率源及其应用

DOI: 10.13336/j.1003-6520.hve.2015.06.006, PP. 1807-1617

Keywords: 光导开关,固态脉冲形成线,层叠Blumlein线,大电流模块,全固态X光机,血液病原体灭活

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Abstract:

为了推动脉冲功率技术的应用,研制了紧凑、可高重复频率运行的固态脉冲功率源。通过大功率固体开关及电路拓扑结构的比较,选择了基于光导开关的层叠Blumlein线型脉冲功率源这一技术路线。基于铁电陶瓷脉冲形成线和光导开关构建了大电流固态模块,光导开关通流能力超过4kA。已经实现的应用包括研制了200kV/1kA固态脉冲功率源并与反射二极管结合实现了重复频率为100Hz或1kHz、脉冲宽度约40ns的猝发X射线脉冲输出;利用基于光导开关的Blumlein线模块产生的快脉冲进行了血液病原体灭活初步研究,可得当脉冲个数为10个时,在80kV/cm的电场作用下红细胞悬液中细菌的抑制率为57%。

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