$Radiation detection apparatus having refractive light checking feature$

Radiation detection apparatus having refractive light checking feature

Apparatus for detecting hazardous radiation with a light sensitive radiation receiving tube enclosed in a housing behind a transparent window, and including an auxiliary internal light source positioned for transmitting light rays into the window and reflecting a portion thereof from the front inter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JUAIRE, MICHAEL P
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS TESTING
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Beschreibung
Zusammenfassung:	Apparatus for detecting hazardous radiation with a light sensitive radiation receiving tube enclosed in a housing behind a transparent window, and including an auxiliary internal light source positioned for transmitting light rays into the window and reflecting a portion thereof from the front interface surface of the window back to an internal mirror and to the radiation detection tube for self checking purposes.