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RADIOACTIVE ISOTOPES OF RHENIUM AND OSMIUM FORMED BY THE BOMBARDMENT OF RHENIUM WITY PROTONS

Journal Article · · Canadian Journal of Physics (Canada)
DOI:https://doi.org/10.1139/p58-055· OSTI ID:4337412
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Targets of normal rhenium, and of rhenium enriched in each stable isotope, were bombarded by protons in the energy range 10 to 80 Mev. These produced osmium and rhenium isotopes of masses 185, 183, 182, 181, and 180. After chemical separations, the gamma rays and conversion electrons were examined for half-lives, and to determine certain conversion coefficients. Independent isomers of Os/sup 183/ with 10 and 15.4 hour half-lives were found. Gamma rays with energies 168.1, 850, and 1097 kev were assigned to the 10 hour isomer, and gamma rays with energies 114.6, 168.7, and 382.4 kev were assigned to the 15.4 hour isomer. In addition, the half-lives of Os/sup 185/, Os/sup 182/, and Re/sup 183/ were observed to be 93.4 days, 21.9 hours, and 67.6 days, respectively. Activities with half-lives of 19 hours, 23 minutes, 18 minutes, and 2 minutes wcre tentatively assigned to Re/sup 181/, Os/sup 181/, Re/sup 180/, and Os/sup 180/, respectively. (auth)
Research Organization:
McGill Univ., Montreal, Quebec, Can.
Sponsoring Organization:
USDOE
NSA Number:
NSA-12-009935
OSTI ID:
4337412
Journal Information:
Canadian Journal of Physics (Canada), Journal Name: Canadian Journal of Physics (Canada) Vol. Vol: 36; ISSN CJPHA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

CHEMICAL REACTIONS
CONVERSION
ELECTRONS
ENRICHMENT
GAMMA RADIATION
HALF-LIFE
OSMIUM 181
OSMIUM 182
OSMIUM 183
OSMIUM 185
OSMIUM ISOTOPES
PHYSICS
PROTON BEAMS
RHENIUM
RHENIUM 180
RHENIUM 181
RHENIUM ISOTOPES
SEPARATION PROCESSES
TARGETS