THE MEASUREMENT OF BETA DOSE AND THE CALIBRATION OF SOME BETA-GAMMA SURVEY INSTRUMENTS

Technical Report · Fri Nov 01 00:00:00 EST 1963

OSTI ID:4106167

Gale, H J; Peaple, L H.J.

An extrapolation ionization chamber was constructed and used to measure the dose rate from sources of the pure beta emitters Tl/sup 204/, P/sup 32/ and Y/ sup 90/ at a number of distances in air. The sources were then used to determine the response per unit dose rate for four survey instruments, which although primarily intended for gamma ray measurement have facilities for indicating beta dose rate4 Calibration curves are given that will enable interpretation of the readings in a number of conditions. The commonly used Type 1349A has serious limitations, but satisfactory results may be obtained with the hot spot monitor Type 1657A and the beta sensitive quartz fibre electroscope Type 1376A. When great sensitivity is required the Type 1320A G.M. probe can be used, provided the beta energy is known. The variation of dose rate with distance from the sources used is in good agreement with that of other observers. (auth)

• Research Organization: United Kingdom Atomic Energy Authority. Research Group. Atomic Energy Research Establishment, Harwell, Berks, England
• NSA Number: NSA-18-010365
• OSTI ID: 4106167
• Report Number(s): AERE-R-4397
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-64
• Country of Publication: United Kingdom
• Language: English

Related Subjects

INSTRUMENTATION
AIR
BETA DETECTION
BETA PARTICLES
DIAGRAMS
ELECTROMETERS
ENERGY
GAMMA DETECTION
GEIGER-MUELLER COUNTERS
IONIZATION CHAMBERS
MONITORING
PHOSPHORUS 32
QUARTZ
RADIATION DOSES
STANDARDS
THALLIUM 204
YTTRIUM 90