Cold neutron prompt gamma activation analysis at NIST: A progress report

  • R. L. Paul
  • R. M. Lindstrom
  • D. H. Vincent
Nuclear and Related Techniques

Abstract

An instrument for prompt gamma-ray activation analysis is now in operation at the NIST Cold Neutron Research Facility (CNRF). The cold neutron beam is relatively free of contamination by fast neutrons and reactor gamma rays, and the neutron fluence rate is 1.5·108 cm−2·s−1 (thermal equivalent). As a result of a compact target-detector geometry the sensitivity is better by a factor of as much as seven than that obtained with an existing thermal instrument, and hydrogen background is a factor of 50 lower. We have applied this instrument to multielement analysis of the Allende meteorite and other materials.

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Copyright information

© Akadémiai Kiadó 1994

Authors and Affiliations

  • R. L. Paul
    • 1
  • R. M. Lindstrom
    • 1
  • D. H. Vincent
    • 2
  1. 1.Inorganic Analytical Research DivisionNational Institute of Standards and TechnologyGaithersburg(USA)
  2. 2.Department of Nuclear EngineeringThe University of MichiganAnn Arbor(USA)

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