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Title: Observation and Measurement of Se-79 in SRS High-Level Tank Fission Product Waste

Abstract

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.

Authors:
Publication Date:
Research Org.:
Savannah River Site (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
761147
Report Number(s):
WSRC-MS-99-00341
TRN: US0004385
DOE Contract Number:
AC09-96SR18500
Resource Type:
Conference
Resource Relation:
Conference: Conference title not supplied, No location, No date; Other Information: PBD: 21 Aug 2000
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; SELENIUM 79; FISSION PRODUCTS; SAVANNAH RIVER PLANT; LIQUID SCINTILLATION DETECTORS; TANKS; HIGH-LEVEL RADIOACTIVE WASTES; CONCENTRATION RATIO

Citation Formats

Dewberry, R.A. Observation and Measurement of Se-79 in SRS High-Level Tank Fission Product Waste. United States: N. p., 2000. Web.
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Dewberry, R.A. Observation and Measurement of Se-79 in SRS High-Level Tank Fission Product Waste. United States.
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Dewberry, R.A. Mon . "Observation and Measurement of Se-79 in SRS High-Level Tank Fission Product Waste". United States. doi:. https://www.osti.gov/servlets/purl/761147.
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@article{osti_761147,
title = {Observation and Measurement of Se-79 in SRS High-Level Tank Fission Product Waste},
author = {Dewberry, R.A.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Aug 21 00:00:00 EDT 2000},
month = {Mon Aug 21 00:00:00 EDT 2000}
}
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  • ;
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