A PORTABLE MULTIPURPOSE RADIATION DETECTION INSTRUMENT

Technical Report · Wed Feb 15 23:00:00 EST 1961

OSTI ID:4011024

Kiyoi, G T; Sinclair, K F; Miller, K

instrument is described. The device performs three separate functions: (1) measurement of gamma dose rate, (2) measurement of beta plus gamma dose rate, and (3) measurement of beta dose rate in the presence of gamma radiation (by means of gamma cancellation). The ranges of operation for each of these functions are 0 to 2, 0 to 10, 0 to 100, and 0 to 1000 rad/hr in tissue under selected physical conditions. The radiac consists of a dual ionization chamber detector, an electrometer amplifier, and two transistorized power supplies. It is powered by two type D flashlight batteries and will operate continuously in excess of 90 hours with 10% meter light operation. Performance data, design factors, and construction details of the instrument are discussed. (auth)

• Research Organization: Naval Radiological Defense Lab., San Francisco
• NSA Number: NSA-15-018271
• OSTI ID: 4011024
• Report Number(s): USNRDL-TR-495
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AMPLIFIERS
BETA PARTICLES
ELECTROMETERS
ENGINEERING AND EQUIPMENT
GAMMA RADIATION
IONIZATION CHAMBERS
LIGHT
PERFORMANCE
PLANNING
POWER SUPPLIES
RADIATION DETECTORS
RATE METERS
TRANSISTORS