Observation and Measurement of Se-79 in SRS High-Level Tank Fission Product Waste
Conference
·
OSTI ID:761147
The authors report the first observation of confirmed Se-79 activity in Savannah River Site high level fission product waste. Se-79 was measured after a seven step chemical treatment to remove interfering activity from Cs-137, Sr-90, and plutonium at levels 105 times higher than the observed Se-79 content and to remove Tc-99 at levels 300 times higher than observed Se-79. Se-79 was measured by liquid scintillation beta-decay counting after specific tests to eliminate uncertainties from possible contributions from Tc-99, Pm-147, Sm-151, Zr-93, or Pu-241, whose beta-decay spectra could appear similar to that of Se-79, and whose content would be expected at levels near or greater than Se-79.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC09-96SR18500
- OSTI ID:
- 761147
- Report Number(s):
- WSRC-MS-99-00341; TRN: US0004385
- Resource Relation:
- Conference: Conference title not supplied, No location, No date; Other Information: PBD: 21 Aug 2000
- Country of Publication:
- United States
- Language:
- English
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