DETERMINATION OF IMPURITIES BY NEUTRON ACTIVATION ANALYSIS. II. DETERMINATION OF Ar IN AIR, He AND Cu BY NEUTRON ACTIVATION ANALYSIS (in Japanese)
Journal Article
·
· Nippon Genshiryoku Gokkaishi
OSTI ID:4757903
Neutron activation analysis was applied to the determination of argon in air, helium, and copper metal. Air and helium samples were sealed in polyethylene tubes and irradiated simultaneously with argon standard in the JRR-1 reactor at a neutron flux of about 3 x 10/sup 11/ n/cm/sup 2//sec for 20 min. After the irradiation, they were mounted in a 3 x 3 in. sodium iodide crystal attached to a RCL 256 channel pulse height analyzer. Argon was determined by gamma ray spectrometry, comparing the height of photopeak at 1.29 Mev gamma of samples with that of standard. Argon in copper metal was determined by means of radiochemical separation and gamma ray spectrometry. A copper sample was irradiated simultaneously with argon standard in the JRR-1 reactor for 2 hr. The irradiated sample was dissolved in diluted HNO/sub 3/ in helium atmosphere and argon was absorbed in a charcoal trap cooled with liquid nitrogen. Argon collected in the trap was determined by gamma ray spectrometry. (auth)
- Research Organization:
- Japan Atomic Energy Research Inst., Tokyo
- NSA Number:
- NSA-17-014188
- OSTI ID:
- 4757903
- Journal Information:
- Nippon Genshiryoku Gokkaishi, Journal Name: Nippon Genshiryoku Gokkaishi Vol. Vol: 5
- Country of Publication:
- Country unknown/Code not available
- Language:
- Japanese
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