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Optimization of the threshold voltage of an image intensifier in ultra-fast photocathode gating

TINGYI GU1, ZHENXING HAN1, KAN WU1, JIANPING CHEN1

Affiliation

  1. State Key Lab of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China, 200240

Abstract

In this paper, the spatial distortion of the gated image intensifier is investigated theoretically. A software model is presented and simulations are performed. The accuracy of the model is verified by the broadband frequency response alignment to the measurement. The correspondent simulation result in the time domain is evaluated by two criteria, uniformity and noise to signal ratio. Both criteria show that the non-uniformity caused by the electric field distortion can be minimized by applying a suitable threshold for input pulse shaping..

Keywords

Image intensifiers, Threshold voltage, Fast gate, Uniformity index, Noise to signal ratio.

Submitted at: May 28, 2008
Accepted at: Feb. 18, 2010

Citation

TINGYI GU, ZHENXING HAN, KAN WU, JIANPING CHEN, Optimization of the threshold voltage of an image intensifier in ultra-fast photocathode gating, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 2, pp. 360-364 (2010)