QUANTITATIVE MEASUREMENT OF BETA RADIOACTIVE NOBLE GASES BY USING A SPHERICAL IONIZATION CHAMBER

Journal Article · Sat Sep 01 04:00:00 EDT 1962 · Nippon Genshiryoku Gakkaishi (Japan)

DOI:https://doi.org/10.3327/jaesj.4.588· OSTI ID:4797404

Yamashita, M; Watanabe, H

An approach to the theoretical ionization efficiency of the spherical ionization chamber is described. Experimental discussions are presented. The ionization efficiency of a spherical chamber, derived on the assumption of the exponential law (as for the absorption of BETA particles in the ionizing gas), can be graphically estimated if the energy of BETA particles, the density of the ionizing gas, and the dimension of the chamber are given, together with knowledge of the backscattering factor and the energy distribution of backscattered radiation. The efficiency greatly depends upon the BETA absorption coefficient and upon the backscattering effect that occurs at the surface of the wall. The experimental discussions on the theoretical ionization efficiency are carried out by using point P/sup 32/ and I/sup 131/ sources and Ar/ sup 41/ gaseous sources. (auth)

• Research Organization: National Inst. of Radiological Sciences, Tokyo
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-000135
• OSTI ID: 4797404
• Journal Information: Nippon Genshiryoku Gakkaishi (Japan), Journal Name: Nippon Genshiryoku Gakkaishi (Japan) Vol. Vol: 4; ISSN NGEGA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ARGON 41
BETA PARTICLES
CHEMISTRY
CONFIGURATION
DISTRIBUTION
EFFICIENCY
ENERGY
IODINE 131
IONIZATION CHAMBERS
MEASURED VALUES
PHOSPHORUS 32
RARE GASES
SCATTERING