Method and apparatus for electron-only radiation detectors from

Details Method and apparatus for electron-only radiation detectors from Method and apparatus for electron-only radiation detectors from

1998-05-08

2000-05-30

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

25037013, 25037012, 25037006, 250389, 257428, H01L 310224, G01T 124

Patent

active

060693606

ABSTRACT:
A system for obtaining improved resolution in room temperature semiconductor radiation detectors such as CdZnTe and Hgl.sub.2, which exhibit significant hole-trapping. A electrical reference plane is established about the perimeter of a semiconductor crystal and disposed intermediately between two oppositely biased end electrodes. The intermediate reference plane comprises a narrow strip of wire in electrical contact with the surface of the crystal, biased at a potential between the end electrode potentials and serving as an auxiliary electrical reference for a chosen electrode--typically the collector electrode for the more mobile charge carrier. This arrangement eliminates the interfering effects of the less mobile carriers as these are gathered by their electrode collector.

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