Radiation detector and radiation apparatus

Details Radiation detector and radiation apparatus Radiation detector and radiation apparatus

2008-01-01

2008-01-01

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Superconducting type

Reexamination Certificate

active

07315025

ABSTRACT:
A practical semiconductor radiation detector capable of collecting electrons rapidly with a large volume is disclosed. A multiple layers of grid electrodes around an anode formed on a semiconductor element limits the generation of the induced charge signal for the anode to the space in the neighborhood of the anode, while at the same time making it possible to collect the electrons rapidly. As a result of limiting the space for generating the induced charge by the grid electrodes, the energy resolution is improved even for a thick semiconductor element. Also, the capability of rapidly collecting the electrons due to the high field strength generated by the grid electrodes makes a sensitive volume of the whole semiconductor and thus achieves a high radiation detection efficiency.

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