TRANSISTORIZED POCKET TYPE RADIATION MONITOR

Journal Article · Mon Jan 01 04:00:00 EST 1962 · Elektron. Rundschau

OSTI ID:4760056

Klessmann, H

A description is given of the application, properties, circuit, and constructional details of a battery-operated personal warning set that can be constantly carried without inconvenience because of its low weight and small size (pocket dosimeter). No operation of controls is required. The radiation inciding in a miniature Geiger tube becomes audible as a short 3-kc tone; the reception frequency is proportional to the intensity of gamma radiation. When the dose intensity reaches 50 mr/hr, the single acoustical pulses become a continuous sound. A high-efficiency d-c converter and a monostable flip-flop working into matched pairs of transistors result in extremely low current drain of about 0.8 ma so that the battery will last for 1 to 2 months continuous operation with null effect. (auth)

• Research Organization: Hahn-Meitner-Institut fur Kernforschung, Berlin
• NSA Number: NSA-17-012560
• OSTI ID: 4760056
• Journal Information: Elektron. Rundschau, Journal Name: Elektron. Rundschau Vol. Vol: 16
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

BATTERIES
CIRCUITS
CURRENTS
DIGITAL SYSTEMS
DOSEMETERS
EFFICIENCY
FREQUENCY
GEIGER-MUELLER COUNTERS
INSTRUMENTS AND INSTRUMENTATION
MONITORING
OSCILLATIONS
PERSONNEL
RADIATION DETECTORS
RADIATION DOSES
SOUND
TRANSISTORS