Krypton-85 irradiation facilities for chemical reaction

Journal Article · Mon Oct 01 04:00:00 EDT 1973 · Nippon Genshiryoku Gakkaishi, v. 15, no. 10, pp. 681-692

DOI:https://doi.org/10.3327/jaesj.15.681· OSTI ID:4344542

Ootsuka, N; Yamamoto, T

S>Irradiation facilities using /sup 85/Kr as radiation source have been devised for producing chemical reactions in liquid phase. For this purpose, the / sup 85/Kr gas is dispersed uniformly in the liquid phase containing the reactants, so that the /sup 85/Kr gas and the reactants come into direct contact with each other. A description of such a facility is presented, together with its performance, and the technical problems encountered in the designing and manufacturing stages (particularly, for the prevention of /sup 85/Kr gas leakage, and for the removal and recovery of /sup 85/Kr gas dissolved in the liquid reactants). Safety considerations are also discussed. Some typical experimental results are reported. Irradiation experiments were performed in a reaction vessel of 11 capacity charged with 300 Ci of /sup 85/Kr. It was observed that the maximum dose rate reached 1.8 x 10/sup 4/ rad/hr, and that the radioactive concentration after removal of the /sup 85/Kr gas dissolved in the solution diminishes to a level below 10/sup 5/ mu Ci/g. From these results, it is concluded that it should be quite practical to use /sup 85/Kr as a radiation source for chemical reactions in the liquid phase. (auth)

• Research Organization: Japan Atomic Energy Research Inst., Takasaki
• NSA Number: NSA-29-015826
• OSTI ID: 4344542
• Journal Information: Nippon Genshiryoku Gakkaishi, v. 15, no. 10, pp. 681-692, Journal Name: Nippon Genshiryoku Gakkaishi, v. 15, no. 10, pp. 681-692; ISSN NGEGA
• Country of Publication: Japan
• Language: Japanese

Related Subjects

*IRRADIATION PLANTS-- SPECIFICATIONS
*KRYPTON 85-- BETA SOURCES
N40300 --Chemistry--Radiation Chemistry
N47320* --Isotope & Radiation Source Technology--Radiation Sources--Industrial Uses
RADIATION CHEMISTRY