Personal radiation dosimeters
AssigneesSiemens Aktiengesellschaft, Chiyoda Technol Corporation
InventorsWilliam Frederick Croydon, Robert James Heath, Stewart Melville Bowen
Life of this patent
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Abstract
A personal radiation dosemeter comprising a radiation detector means coupled to an electronic measurement circuit arranged in combination therewith to generate signals representative of an amount of radiation detected by the radiation detector. The radiation detector means is arranged to be screened from ambient light and is further provided with a light source optically coupled to the radiation detector and arranged to operate under control of a test control circuit to generate light of a wavelength which may be detected by said radiation detector. This arrangement provides, in combination with said electronic measurement circuit an integrity test for said radiation detector means.
Claims20
A personal radiation dosimeter comprising:
- a radiation detector;
- and
- an electronic measurement circuit arranged coupled to said radiation detector for generating signals representative of an amount of radiation detected by said radiation detector;
- wherein said radiation detector includes
- a light source optically coupled to said radiation detector and arranged to operate under control of a test control circuit to generate light of a wavelength which may be detected by said radiation detector, thereby providing in combination with said electronic measurement circuit an integrity test for said radiation detector;
- and
- a screen which shields said radiation detector from ambient light.
Dependencies are inferred from the claim text.