Internal field measurement in nuclear radiation detectors has always been a
very difficult task. Hopefully, II-VI semiconductors, and all zinc blende
structure, have a strong linear electro-optical coefficient, which allows t
o make use of Pockels effect. CdTe and CdZnTe are IR transparent and polari
zed light transmission is strongly related to the internal electric field.
Therefore. IR transmission provides us powerful tools for electric field ma
pping. Detectors with several geometry have been investigated for improving
detection quality. (C), 1999 Elsevier Science B.V. All rights reserved.