Journal of Radioanalytical and Nuclear Chemistry

, Volume 306, Issue 3, pp 579–587 | Cite as

Evaluation of Westcott g(T n )-factors used in k 0-NAA for “non-1/v” (n,γ) reactions

  • R. van Sluijs
  • A. Stopic
  • R. Jacimovic


The Westcott convention was introduced in the early 1990s in k 0-NAA to allow the analysis of nuclides whose thermal neutron capture cross-sections do not follow the “1/v”-law, so called “non-1/v” nuclides. Most affected nuclides are Lu-176, Eu-151 and Yb-169. Westcott introduced a neutron temperature dependent “g(T n )-factor” for the activation by thermal neutrons. Recently the extended Høgdahl convention was introduced in k 0-NAA for “non-1/v” nuclides using the same factor, emphasizing the interest in the analysis using these nuclides. This paper reviews most publications on “g(T n )-factors” for NAA and provides new factors based on the most recent evaluated nuclear database ENDF/B-VII.1.


Extended Høgdahl Neutron Activation Thermal 


  1. 1.
    Westcott CH (1960) Effective cross section values for well-moderated thermal reactor spectra, 3rd edn. Atomic Energy of Canada Limited, Research and Development, Chalk River Laboratory, AECL-1101, OntarioGoogle Scholar
  2. 2.
    De Corte F (1987) The k 0-standardization method: move to the optimization of neutron activation analysis. Thesis, Ghent University, HabilGoogle Scholar
  3. 3.
    De Corte F, Simonits A, Bellemans F, Freitas MC, Jovanovic S, Smodis B, Erdtmann G, Petri H, De Wispelaere A (1993) Recent advances in the k 0-standardization of neutron activation analysis: extensions, applications, prospects. J Radioanal Nucl Chem 169:125–158CrossRefGoogle Scholar
  4. 4.
    De Corte F, Bellemans F, De Neve P, Simonits A (1994) The use of a modified Westcott-formalism in the k 0-standardization of NAA—the state of affairs. J Radioanal Nucl Chem 179:93–103CrossRefGoogle Scholar
  5. 5.
    De Corte F (2001) The standardization of standardless NAA. J Radioanal Nucl Chem 248:13–20CrossRefGoogle Scholar
  6. 6.
    De Corte F, Simonits A (2003) Recommended nuclear data for use in the k 0 standardization of neutron activation analysis. At Data Nucl Data Tables 85:47–67CrossRefGoogle Scholar
  7. 7.
    Van Sluijs R, Jacimovic R, Kennedy G (2014) A simplified method to replace the Westcott formalism in k 0-NAA using non-/v nuclides. J Radioanal Nucl Chem 300:539–545CrossRefGoogle Scholar
  8. 8.
    Chadwick MB, Herman MW, Obložinsky P et al. (2011) ENDF/B-VII.1 nuclear data for science and technology: cross sections, covariances, fission product yields and decay data, nuclear data sheets 112:2887 (
  9. 9.
    Gryntakis EM, Kim JI (1975) Radiochim Acta 22:128CrossRefGoogle Scholar
  10. 10.
    Holden NE (1991) BNL-46465 paper presented at the 36th IUPAC General Assembly, HamburgGoogle Scholar
  11. 11.
    Holden NE (1999) Temperature dependence of the Westcott g-factor for neutron reactions in activation analysis. Pure Appl Chem 71:2309–2315CrossRefGoogle Scholar
  12. 12.
    Mughabghab SF (2003) Thermal neutron capture cross sections resonance integrals and G-factors, INDC (ND8) 44d. International Atomic Energy Agency, ViennaGoogle Scholar
  13. 13.
    Choi HD, Trkov A (2007) Nomenclature, Westcott gw factors and neutron spectral shape dependent formalism. In Database of prompt gamma rays from slow neutron capture for elemental analysis, Chap. 2, IAEA, STI/PUB/1263Google Scholar
  14. 14.
    Pritychenko B, Mughabghab SF (2013) Neutron thermal cross sections, Westcott factors, resonance integrals, Maxwellian averaged cross sections and astrophysical reaction rates calculated from the ENDF/B-VII.1, JEFF-3.1.2, JENDL-4.0, ROSFOND-2010, CENDL-3.1 and EAF-2010 evaluated data libraries. Nucl Data Sheets 113:3120CrossRefGoogle Scholar
  15. 15.
    Jacimovic R, De Corte F, Kennedy G, Vermaercke P, Revay Z (2014) The 2012 recommended k 0 database. J Radioanal Nucl Chem 300:589–592CrossRefGoogle Scholar
  16. 16.
    Stopic A, Bennett JW (2014) Measurement of k 0 values for caesium and iridium. J Radioanal Nucl Chem 300:593–597CrossRefGoogle Scholar
  17. 17.
    Mughabghab SF (2006) Atlas of neutron resonances, resonance parameters and neutron cross sections Z = 1–100. Elsevier, AmsterdamGoogle Scholar
  18. 18.
    Koning AJ, Bauge E, Dean CJ (2011) Status of the JEFF nuclear data library. J Korean Phys Soc 59(2):1057Google Scholar
  19. 19.
    Shibata K, Kawano T, Nakagawa T (2011) JENDL-4.0: a new library for nuclear science and engineering. J Nucl Sci Technol 48:1CrossRefGoogle Scholar
  20. 20.
    Zabrodskaya SV, Ignatyuk AV, Koscheev VN, Manokhin VN, Nikolaev MN, Pronyaev VG (2007) ROSFOND—Russian National Library of Neutron Data. VANT Nucl Constants 1–2:3Google Scholar
  21. 21.
    Ge ZG, Zhao ZX, Xia HH (2011) The updated version of Chinese evaluated nuclear data library (CENDL-3.1). J Korean Phys Soc 59(2):1052Google Scholar
  22. 22.
    Sublet J.-Ch, Packer LW, Kopecky J (2010) The European activation file: EAF-2010 neutron-induced cross section library, EASY Documentation Series CCFE-R 10Google Scholar
  23. 23.
    Lemmel HD, McLaughlin PK, Pronyaev VG (2001) ENDF/B-VI Release 8 (Last release of ENDF/B-VI) The U.S. evaluated nuclear data library for neutron reaction data, IAEA-NDS-100 (Rev 11)Google Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  1. 1.k0-wareHeerlenThe Netherlands
  2. 2.Centre for Nuclear ApplicationsAustralian Nuclear Science and Technology OrganisationLucas HeightsAustralia
  3. 3.Department of Environmental SciencesJozef Stefan InstituteLjubljanaSlovenia

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