Half-life and gamma abundance ratio measurements of Sm-153

Journal Article · Mon Nov 02 04:00:00 EST 2009 · Journal of Radioanalytical and Nuclear Chemistry, 282(2):369-372

DOI:https://doi.org/10.1007/s10967-009-0347-5· OSTI ID:972540

Friese, Judah I; Payne, Rosara F; Greenwood, Lawrence R; Soderquist, Chuck Z; Garofoli, Stephanie J

The measurement of the decay of 153Sm was observed by gamma spectrometry, liquid scintillation counting and gas proportional counting in an attempt to confirm the half life and gamma abundance ratios for this isotope. Recent changes in the published nuclear decay data indicate that historical literature values may be biased. The 153Sm was made by the neutron activation of ultrapure isotopically enriched 152Sm to create 153Sm. The decay measurements were made over a three week period and no other isotopes were detected during this time. The gamma abundance ratio for the 103 keV gamma was measured to be (27.9%) which is 4% lower than the published data. In addition, the half life was 1.9308 days, which is 0.34% lower than the published data.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 972540
• Report Number(s): PNNL-SA-70073; DP4011073
• Journal Information: Journal of Radioanalytical and Nuclear Chemistry, 282(2):369-372, Journal Name: Journal of Radioanalytical and Nuclear Chemistry, 282(2):369-372 Journal Issue: 2 Vol. 282; ISSN JRNCDM; ISSN 0236-5731
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ABUNDANCE
DECAY
GAMMA SPECTROSCOPY
HALF-LIFE
NEUTRONS
NUCLEAR DECAY
SCINTILLATION COUNTING