Patent ID: 6452190
Filing Date: 2002-09-17
Classification: G01N,G01T,H01J

Abstract:
An apparatus for radiation analysis by means of analyzing ionizing radiation, comprising:a radiation detector for detecting the analyzing radiation, the radiation detector includes: a gas-filled absorption chamber for absorbing the radiation to be detected, which absorption chamber is provided with an entrance window which is formed in a wall of the absorption chamber and is transparent to the radiation to be detected, and a plurality of counting wires which are arranged in the gas atmosphere, the surface of the entrance window being oriented transversely of the longitudinal direction of the plurality of counting wires, wherein the radiation detector is also provided with at least two avalanche chambers which adjoin the absorption chamber, are in atmospheric contact therewith and are intended to produce an avalanche of released charged particles, each of said avalanche chambers includes a grid which is present in the gas atmosphere and is arranged around at least one of the plurality of counting wires, and wherein at least two of the plurality of counting wires extend substantially parallel to one another.