Accession Number:

AD0255709

Title:

A PORTABLE MULTI-PURPOSE RADIATION DETECTION INSTRUMENT

Descriptive Note:

Corporate Author:

NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CALIF

Personal Author(s):

• KIYOI,G.T.
• SINCLAIR,K.F.
• MILLER,K.

Report Date:

1961-02-16

Pagination or Media Count:

1.0

Abstract:

A portable high range multi-purpose radiation detection 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 - 2 radhr, 0 - 10 radhr, 0 - 100 radhr, and 0 1000 radhr 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 presented. Author

Descriptors:

• *BETA COUNTERS
• *DOSIMETERS
• *GAMMA COUNTERS
• *IONIZATION CHAMBERS
• CIRCUITS
• CONTAMINATION
• DETECTION
• DRY BATTERIES
• MILITARY EQUIPMENT
• POWER SUPPLIES
• PROPORTIONAL COUNTERS
• RADIATION MEASURING INSTRUMENTS
• SENSITIVITY

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE