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The design and implementation for a range-gated ICCD
其他题名一种用于距离选通的ICCD设计与实现
He, Huan; Tian, Jin-Shou; Wen, Wen-Long; Wang, Jun-Feng; Liu, Hu-Lin; Sai, Xiao-Feng; Wei, Yong-Lin; Xin, Li-Wei; Li, Li-Zhou
2015-06-01
发表期刊Guangzi Xuebao/Acta Photonica Sinica
卷号44期号:6
摘要A high-speed gated second generation image intensifier which is of short afterglow, high resolution and fast response time was designed. A high performance range-gated ICCD was obtained by coupling a fiber taper to CCD. The performance of each component and their effects on the system spatial resolution were analyzed. FPGA was employed to design the circuit control system which can achieve digital control for ICCD by producing a nanosecond gating width. The system can also obtain clear images of objectives in different brightness and distance by adjusting the pulse width and delay time. In addition, the background noise was reduced and the dynamic range of imaging was increased. The gain of this system can be monitored and adjusted to reach a signal-noise ratio of 201 dB. A gating DC pulse with voltage of -200 V and width of 3 ns-DC continuously adjustable was applied to achieve image intensifier gating. In order to improve the supplement speed of electrons to the photocathode, a square grid which has 5 μm line width and 50 μm spacing lithography was equipped to the input window surface. This also ensured that the photocathode response speed is fast enough when the gating width is 3 ns. The highest gating frequency can reach to 300 kHz. The experimental test shows that the gain of the image intensifier is 10 718 cd/m2 lx when Microchannel Plate voltage is 700 V and phosphor screen voltage is 5 000 V, the system spatial resolution is 29.7 lp/mm. ©, 2015, Chinese Optical Society. All right reserved.
收录类别EI
语种中文
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/27268
专题条纹相机工程中心
推荐引用方式
GB/T 7714
He, Huan,Tian, Jin-Shou,Wen, Wen-Long,et al. The design and implementation for a range-gated ICCD[J]. Guangzi Xuebao/Acta Photonica Sinica,2015,44(6).
APA He, Huan.,Tian, Jin-Shou.,Wen, Wen-Long.,Wang, Jun-Feng.,Liu, Hu-Lin.,...&Li, Li-Zhou.(2015).The design and implementation for a range-gated ICCD.Guangzi Xuebao/Acta Photonica Sinica,44(6).
MLA He, Huan,et al."The design and implementation for a range-gated ICCD".Guangzi Xuebao/Acta Photonica Sinica 44.6(2015).
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