Measurement of partial γ-ray production cross-sections and k0 factors for radionuclides with chopped-beam PGAA

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Abstract

The partial γ-ray production cross-sections (σγ) and k0 factors for 16 short- and medium-lived radionuclides were determined with prompt gamma activation analysis (PGAA) in a chopped beam of cold neutrons. This technique avoids some problems of usual standardization measurements done in neutron activation analysis (NAA), e.g. epithermal activation, counting at varying count rates, and also offers better selectivities than continuous-beam PGAA. The k0 values were determined with internal standardization using stoichiometric compounds or water solutions of known compositions. Calculation of the uncertainties is also discussed in detail.

Original languageEnglish
Pages (from-to)655-661
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume564
Issue number2
DOIs
Publication statusPublished - Aug 15 2006

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Keywords

  • Beam chopper
  • Cold neutrons
  • Internal standardization
  • Neutron activation analysis (NAA)
  • Partial γ-ray production cross-sections
  • Prompt gamma activation analysis (PGAA)
  • k-factors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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