Sensitivity of Exclusion Photoconductor

Sensitivity of exclusion detectors. Fig. 3.20, was determined by calculating the dark current of detector according to the van Roosbroeck-Shockley model and including generation-recombination terms according to (1.85) and (1.86). The optical term (1.81) was subsequently added and the calculation was repeated. Signal current was 

The n Hgi xCdxTe detector structure used to calculate cmrent sensitivity was the same as in Fig. 3.19. It can be seen that the increase of sensitivity follows the same pattern as noise current. This is logical, since in situations when the g-r component prevails the same mechanisms are responsible both for creation of signal current and for its fluctuations. 

It can be seen that at the highest values of bias a noticeable drop of sensitivity appears. This means that for each set of parameters of an exclusion device there is a 

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