Article

Radiation-induced charge collection in infrared detector arrays

PR&T Inc., Fallbrook, CA, USA
IEEE Transactions on Nuclear Science (Impact Factor: 1.22). 01/2003; DOI: 10.1109/TNS.2002.805382
Source: IEEE Xplore

ABSTRACT A modeling approach is described for predicting charge collection in space-based infrared detector arrays due to ionizing particle radiation. The modeling uses a combination of analytical and Monte Carlo techniques to capture the essential features of energetic ion-induced charge collection to detector pixels in a two-dimensional array. The model addresses several aspects that are necessary for high-fidelity simulation of complex focal plane array structures including multiple layers, subregions within layers, variation of linear energy transfer with range, secondary electron scattering, free-field diffusion, and field-assisted diffusion. Example results are given and predictions are compared to experimental data.

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