Invention Publication
EP0016622A1 Wide range radiation monitoring apparatus
失效
在einem grossen Messbereich arbeitende Strahlennachweis-Vorrichtung。
- Patent Title: Wide range radiation monitoring apparatus
- Patent Title (中): 在einem grossen Messbereich arbeitende Strahlennachweis-Vorrichtung。
-
Application No.: EP80300795.4Application Date: 1980-03-14
-
Publication No.: EP0016622A1Publication Date: 1980-10-01
- Inventor: Goldstein, Norman Phillip
- Applicant: WESTINGHOUSE ELECTRIC CORPORATION
- Applicant Address: Westinghouse Building Gateway Center Pittsburgh Pennsylvania 15222 US
- Assignee: WESTINGHOUSE ELECTRIC CORPORATION
- Current Assignee: WESTINGHOUSE ELECTRIC CORPORATION
- Current Assignee Address: Westinghouse Building Gateway Center Pittsburgh Pennsylvania 15222 US
- Agency: van Berlyn, Ronald Gilbert
- Priority: US20598 19790314
- Main IPC: G01T3/00
- IPC: G01T3/00 ; H01J47/02
Abstract:
This invention relates to a simple and rugged, wide- range radiation monitor adapted for use at various locations around a nuclear reactor plant.
An emitter plate (E) of a high atomic number material is positioned between collector plates (C7, C2) of a low atomic number material and the ionization current developed in the gap regions therebetween in response to low radiation fields and the self-powered current developed in response to high radiation fields is measured by a current measuring circuit (M) as an indication of impinging radiation. The spacing between the collector and emitter plates and accordingly the gas volume defined therebetween is great enough that the ionization current dominates the self-powered current at low radiation fields.
An emitter plate (E) of a high atomic number material is positioned between collector plates (C7, C2) of a low atomic number material and the ionization current developed in the gap regions therebetween in response to low radiation fields and the self-powered current developed in response to high radiation fields is measured by a current measuring circuit (M) as an indication of impinging radiation. The spacing between the collector and emitter plates and accordingly the gas volume defined therebetween is great enough that the ionization current dominates the self-powered current at low radiation fields.
Information query
