Abstract:
An X- and gamma -radiation detector including a plurality of detecting cells. Each cell comprises an anode and two halfcathodes, the half-cathodes consisting of flat plates. The respective half-cathodes are arranged as othogonal elements so that by applying matrix technique the output of a particular cell can be selected to localize the radiation detected.
Abstract:
A radiation detector for high resolution measurement of energy spectra in flowing gas samples has a first electrode, a parallel second electrode of opposite polarity, and a detection chamber between the two electrodes. An integral pulse or stream of sample gas is passed in laminar flow through the detection chamber. A nonradioactive gas flows around the stream of sample gas to prevent contact and contamination of either electrode with radioactive material, as well as to absorb the radiation from the sample gas for detection.