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Title: International inter-comparison exercise on $$$${}^{153}\hbox {Sm}$$$$153Sm

Journal Article · · Journal of Radioanalytical and Nuclear Chemistry
ORCiD logo [1];  [1];  [1];  [1];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [3];  [3];  [3];  [4];  [4];  [4];  [4];  [4]
  1. Atomic Weapons Establishment (AWE), Reading (United Kingdom)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Samarium-153 (153Sm) is one of the many isotopes of interest to the nuclear forensics community. This short-lived radionuclide decays to stable europium-153 via beta emission, with subsequent de-excitation via gamma emission and internal conversion. Historical measurements of 153Sm by gamma spectrometry and beta liquid scintillation counting have shown a low bias compared to beta proportional counting. In order to investigate this, four national laboratories jointly conducted an experimental inter-comparison exercise on a certified 153Sm sample, created from neutron activation of samarium-152. Radiometric measurements were conducted using gamma spectrometry, liquid scintillation, gas proportional counting, and passivated implanted planar silicon detectors and compared across the four institutions against the certificate. The results from this experiment are presented together with a number of conclusions which suggest that the current published cumulative fission yield for 153Sm, as used by many laboratories, is approximately 15% high and is the likely cause of the previously observed historical bias.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1524295
Report Number(s):
LLNL-JRNL-771110; 961763
Journal Information:
Journal of Radioanalytical and Nuclear Chemistry, Vol. 318, Issue 1; ISSN 0236-5731
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (13)

Standardization of Sm-153 solution by absolute methods journal May 2014
The standardization of samarium-153 journal January 1987
JENDL-4.0: A New Library for Nuclear Science and Engineering journal January 2011
Proficiency test exercises for particulate systems at CTBT radionuclide laboratories journal April 2018
Fission Product Yields for 14 MeV Neutrons on 235U, 238U and 239Pu journal December 2011
Half-life and gamma abundance ratio measurements of 153Sm journal September 2009
Determination of the intensity of X- and gamma-ray emissions in the decay of 153Sm journal October 2006
Fission Product Data Measured at Los Alamos for Fission Spectrum and Thermal Neutrons on 239Pu, 235U, 238U journal December 2010
ENDF/B-VII.1 Nuclear Data for Science and Technology: Cross Sections, Covariances, Fission Product Yields and Decay Data journal December 2011
ENDF/B-VII.0: Next Generation Evaluated Nuclear Data Library for Nuclear Science and Technology journal December 2006
Evaluation and compilation of fission product yields 1993 report December 1995
JENDL-4.0: A New Library for Nuclear Science and Engineering journal January 2011
BIPM comparison BIPM.RI(II)-K1.Ir-192 of the activity measurements of the radionuclide 192Ir and links for the international comparison CCRI(II)-K2.Ir-192 journal January 2004

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