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Title: Analysis of 161Tb by radiochemical separation and liquid scintillation counting

Abstract

The determination of 161Tb activity is problematic due to its very low fission yield, short half-life, and the complication of its gamma spectrum. At AWE, radiochemically purified 161Tb solution was measured on a PerkinElmer 1220 QuantulusTM Liquid Scintillation Spectrometer. Since there was no 161Tb certified standard solution available commercially, the counting efficiency was determined by the CIEMAT/NIST Efficiency Tracing method. The method was validated during a recent inter-laboratory comparison exercise involving the analysis of a uranium sample irradiated with thermal neutrons. Lastly, the measured 161Tb result was in excellent agreement with the result using gamma spectrometry and the result obtained by Pacific Northwest National Laboratory.

Authors:
 [1];  [1];  [2];  [2];  [2];  [2];  [2]
  1. AWE plc, Reading (United Kingdom)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1250858
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Applied Radiation and Isotopes
Additional Journal Information:
Journal Volume: 117; Journal Issue: C; Journal ID: ISSN 0969-8043
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPE AND RADIATION SOURCES; Terbium-161; Eichrom® LN Resin; liquid scintillation counting; CIEMAT/NIST method

Citation Formats

Jiang, J., Davies, A., Arrigo, L., Friese, J., Seiner, B. N., Greenwood, L., and Finch, Z. Analysis of 161Tb by radiochemical separation and liquid scintillation counting. United States: N. p., 2015. Web. doi:10.1016/j.apradiso.2015.12.004.
Jiang, J., Davies, A., Arrigo, L., Friese, J., Seiner, B. N., Greenwood, L., & Finch, Z. Analysis of 161Tb by radiochemical separation and liquid scintillation counting. United States. https://doi.org/10.1016/j.apradiso.2015.12.004
Jiang, J., Davies, A., Arrigo, L., Friese, J., Seiner, B. N., Greenwood, L., and Finch, Z. Sat . "Analysis of 161Tb by radiochemical separation and liquid scintillation counting". United States. https://doi.org/10.1016/j.apradiso.2015.12.004. https://www.osti.gov/servlets/purl/1250858.
@article{osti_1250858,
title = {Analysis of 161Tb by radiochemical separation and liquid scintillation counting},
author = {Jiang, J. and Davies, A. and Arrigo, L. and Friese, J. and Seiner, B. N. and Greenwood, L. and Finch, Z.},
abstractNote = {The determination of 161Tb activity is problematic due to its very low fission yield, short half-life, and the complication of its gamma spectrum. At AWE, radiochemically purified 161Tb solution was measured on a PerkinElmer 1220 QuantulusTM Liquid Scintillation Spectrometer. Since there was no 161Tb certified standard solution available commercially, the counting efficiency was determined by the CIEMAT/NIST Efficiency Tracing method. The method was validated during a recent inter-laboratory comparison exercise involving the analysis of a uranium sample irradiated with thermal neutrons. Lastly, the measured 161Tb result was in excellent agreement with the result using gamma spectrometry and the result obtained by Pacific Northwest National Laboratory.},
doi = {10.1016/j.apradiso.2015.12.004},
journal = {Applied Radiation and Isotopes},
number = C,
volume = 117,
place = {United States},
year = {Sat Dec 05 00:00:00 EST 2015},
month = {Sat Dec 05 00:00:00 EST 2015}
}