| 感应电压叠加器驱动阳极杆箍缩二极管型脉冲X射线源 |
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| 引用本文： | 张政权,刘庆想,向欣,张朋朋,吴志鹏. 感应电压叠加器驱动阳极杆箍缩二极管型脉冲X射线源[J]. 强激光与粒子束, 2010, 22(4): 0. DOI: 10.3788/HPLPB20102204.0721 |
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| 作者姓名： | 张政权 刘庆想 向欣 张朋朋 吴志鹏 |
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| 作者单位： | 1.西北核技术研究所, 西安 71 0024 |
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| 摘 要： | 介绍了自行研制的用于闪光照相且基于感应电压叠加器和阳极杆箍缩二极管的X射线源的组成、结构和主要参数。输出电压3 MV的Marx发生器给阻抗7.8 Ω水介质脉冲形成线充电，产生脉宽约70 ns,电压约1 MV的高功率脉冲，经过峰化开关和预脉冲开关后分成3路馈入三级感应电压叠加器感应腔进行电压叠加，感应电压叠加器次级采用真空绝缘传输线，阻抗从40 Ω变成60 Ω，驱动阳极杆箍缩二极管，二极管阴极为石墨，阳极为直径1.2 mm的钨杆，石墨阴极产生的电子束在电流自磁场作用下发生箍缩，轰击阳极，产生小焦斑脉冲Ｘ射线。该装置在Marx充电电压为±35 kV时，二极管电压约2.0 MV，二极管电流约为50 kA，半高宽约80 ns；X射线半高宽约为40 ns，剂量约为28 mGy，焦斑约为0.95 mm。利用该X射线源拍摄到了炸药爆炸产生的层裂碎片不同飞行时间的图像。
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| 关 键 词： | 感应电压叠加器 阳极杆箍缩二极管 闪光照相 层裂碎片 脉冲X射线 |
| 收稿时间： | 1900-01-01; |
High-frequency rectifying commutated converter |
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| Zhang+Zhengquan,Liu+Qingxiang,Xiang+Xin,Zhang+Pengpeng,Wu+Zhipeng+. High-frequency rectifying commutated converter[J]. High Power Laser and Particle Beams, 2010, 22(4): 0. DOI: 10.3788/HPLPB20102204.0721 |
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| Authors: | Zhang+Zhengquan Liu+Qingxiang Xiang+Xin Zhang+Pengpeng Wu+Zhipeng+ |
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| Affiliation: | 1.Northwest Institute of Nuclear Technology,P.O.Box 69-10,Xi’an 710024,China |
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| Abstract: | The output power and control modes of the high-frequency commutated resonant converter were derived through the theoretical research on its charging and discharging processes.The numerical simulation was conducted by using Simulink of Matlab to build its full-circuit model.Simulation results show that the current and voltage waveforms of nodes agree with theoretical values during the resonant charging and discharging processes. |
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| Keywords: | high-frequency rectifying resonant charging resonant discharging high efficiency power quality |
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