Published 2017 | Version v1
Journal article Metadata-only

A new thorium-229 reference material

Creators

  • 1. National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States)
  • 2. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  • 3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  • 4. Alternative Energies and Atomic Energy Commission (CEA), Bruyeres-le-Chatel (France)

Description

A new reference material was characterized for 229Th molality and thorium isotope amount ratios. This reference material is intended for use in nuclear forensic analyses as an isotope dilution mass spectrometry spike. The reference material value and expanded uncertainty (k = 2) for the 229Th molality is (1.1498 ± 0.0016)×10-10 mol g-1 solution. The value and expanded uncertainty (k = 2) for the n(230Th)/n(229Th) ratio is (5.18 ± 0.26)×10-5 and the n(232Th)/n(229Th) ratio is (3.815 ± 0.092)×10-4.

Availability note (English)

Available from https://www.osti.gov/pages/servlets/purl/1426068; https://www.osti.gov/pages/biblio/1426068; DOE Accepted Manuscript full text, or the publishers Best Available Version will be available free of charge after the embargo period

Additional details

Identifiers

URL
https://www.osti.gov/pages/servlets/purl/1426068; https://www.osti.gov/pages/biblio/1426068;
DOI
10.1016/j.apradiso.2017.07.050;
arXiv
arXiv:1706.07875;

Publishing Information

Journal Title
Applied Radiation and Isotopes
Journal Volume
134
Journal Issue
C
Journal Page Range
p. 23-31
ISSN
0969-8043

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United States
INIS RN
50003215
Subject category
S54: ENVIRONMENTAL SCIENCES; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S07: ISOTOPES AND RADIATION SOURCES;
Descriptors DEI
ISOTOPE DILUTION; MASS SPECTROSCOPY; THORIUM 229; THORIUM 230; THORIUM 232
Descriptors DEC
ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; ISOTOPE APPLICATIONS; ISOTOPES; NEON 24 DECAY RADIOISOTOPES; NUCLEI; RADIOISOTOPES; SPECTROSCOPY; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM ISOTOPES; TRACER TECHNIQUES; YEARS LIVING RADIOISOTOPES

Optional Information

Contract/Grant/Project number
AC52-07NA27344
Funding organization
USDOE (United States)
Secondary number(s)
LLNL-JRNL--737011; OSTIID--1426068