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THE PRODUCTION OF LONG-LIVED ISOMERS BY THE USE OF THE ELECTRON LINEAR ACCELERATOR AND ITS APPLICATION (in Japanese)

Journal Article · · Proc. Japan Conf. Radioisotopes
OSTI ID:4683944
A number of natural elements is irradiated with electrons or converted photons using a 6-Mev electron linear accelerator. In this case the type of reaction is ( gamma , gamma ), in which nuclides absorb x rays resonantly and come to isomers. A water-cooled lead target is used as an x-ray converter. After the irradiation, the isomeric nuclide is determined by measuring its half life and the energy spectrum of the gamma transitions. The production of the following isomers is confirmed: Sr-87m, Y-89m, Kn-103m, Ag-107m + Ag109m, Cd-111m. In-113m, In-115m, Sn-117m, Ba-135m, Ba-137m, Hf-179m, Pt-195m, Au-197m, and Hg- 199m. The half lives range between the 7 seconds and 14 days. (JAIF)
Research Organization:
Government Industrial Research Inst., Nagoya
NSA Number:
NSA-17-029953
OSTI ID:
4683944
Journal Information:
Proc. Japan Conf. Radioisotopes, Journal Name: Proc. Japan Conf. Radioisotopes Vol. Vol: 4th
Country of Publication:
Country unknown/Code not available
Language:
Japanese