Branching fraction in the radioactive decay of /sup 85m/Kr

Technical Report · Fri Feb 01 00:00:00 EST 1980

DOI:https://doi.org/10.2172/5508896· OSTI ID:5508896

Jaffey, A H; Steinberg, E P; Gindler, J E; Gray, J Jr; Horwitz, E P; Hughes, J P; Schmitz, F J

The branching fraction in the decay of the fission product /sup 85m/Kr to the ground state /sup 85/Kr (10.75 y) was measured relative to the total decay to both /sup 85/Kr and /sup 85/Rb. Samples of /sup 235/U were highly irradiated in a high-flux reactor and dissolved. The /sup 85/Rb was measured by isotope-dilution mass spectrometry, and the /sup 85/Kr was counted in GM tubes the counting efficiencies of which were calibrated with a standardized /sup 85/Kr gas of known disintegration rate. The branching fraction measured with both a low-burnup sample and a high-burnup sample was 0.2160 +- 0.0019, the largest error arising from the uncertainty in the caibration of the standardized gas. 1 figure, 9 tables.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 5508896
• Report Number(s): ANL-79-107; TRN: 80-008246
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
KRYPTON 85
ISOMERIC TRANSITIONS
BRANCHING RATIO
EXPERIMENTAL DATA
ISOLATED VALUES
ISOMERIC NUCLEI
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DATA
DATA FORMS
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KRYPTON ISOTOPES
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
651623* - Nuclear Properties & Reactions
A=59-89
Experimental- Energy Levels & Transitions- (-1987)
651622 - Nuclear Properties & Reactions
A=59-89
Experimental- Radioactive Decay- (-1987)