强激光与粒子束, 2012, 24 (10): 2447, 网络出版: 2012-09-24   

门控型像增强器开门时间测量

Measuring gating time of gated image intensifier
作者单位
中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
摘要
提出了采用超快激光脉冲与光纤阵列形成的光延时、跟CCD相机相结合的方法,对门控型像增强器进行了开门时间的测量,分析了该测量方法的可行性,建立了门控型像增强器开门时间的测量系统。用该测量方法对超高速光电分幅相机中的门控型像增强器开门时间进行了测量,得到了10,20,30,50 ns档开门时间的实验图片,与所加的快高压脉冲时间12.5,18.5,28.75,48.6 ns相比较,开门时间的测量精度得到了提高,该测量方法可用于超高速光电分幅相机曝光时间的标定。
Abstract
A method for measuring the gating time of the gated image intensifier by using a CCD to record the time delay produced by the ultra-fast laser pulse and the fiber array is presented. The feasibility of the method is analyzed, and the measurement system is built. The gating time of the gated image intensifier for the ultra-high-speed photoelectronic framing camera is measured and the experimental images corresponding to the gating time of 10 ns, 20 ns, 30 ns and 50 ns are obtained. Compared with the results corresponding to the gating time of 12.5 ns, 18.5 ns, 28.75 ns and 48.6 ns, obtained with the high-voltage pulses method, the proposed method greatly improves the measuring accuracy. The method has great significance in calibrating the exposure time of the gated image intensifier and the ultra-high-speed photoelectronic framing camera.
参考文献

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刘宁文, 畅里华, 肖正飞, 李剑, 赵新才, 尚长水, 田建华. 门控型像增强器开门时间测量[J]. 强激光与粒子束, 2012, 24(10): 2447. Liu Ningwen, Chang Lihua, Xiao Zhengfei, Li Jian, Zhao Xincai, Shang Changshui, Tian Jianhua. Measuring gating time of gated image intensifier[J]. High Power Laser and Particle Beams, 2012, 24(10): 2447.

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