Radiation detecting device

Details Radiation detecting device Radiation detecting device

1987-03-03

1990-05-15

LaRoche, Eugene R.

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

25037001, 25037002, G01T 124

Patent

active

049260529

ABSTRACT:
A solid state radiation detector has semiconductor layers and metal layers which are stacked along the incident direction of radiation rays. Each metal layer is made of a specific metal material which receives radiation rays entering itself and produces free photoelectrons by interactions therewith. The photoelectrons are introduced into the semiconductor layer, and excite it, thereby producing electron-hole pairs therein. The metal layers serve not only as radiation detecting layers but also as electrodes for collecting the electron-hole pairs. Therefore, when the produced electron-hole pairs are derived from the metal layers, an electrical radiation detecting signal may be produced.

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