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Journal of Radioanalytical and Nuclear Chemistry

, Volume 307, Issue 3, pp 1595–1598 | Cite as

A Monte Carlo approach to food density corrections in gamma spectroscopy

  • R. L. Metzger
  • K. Van Riper
  • P. Pouquette
Article

Abstract

Evaluation of food products by gamma spectroscopy requires a correction for food density for many counting geometries and isotopes. An inexpensive method to develop these corrections has been developed by creating a detailed model of the HPGe crystal and counting geometry for the Monte Carlo transport code MCNP. The Monte Carlo code was then used to generate a series of efficiency curves for a wide range of sample densities. The method was validated by comparing the MCNP generated efficiency curves against those obtained from measurements of NIST traceable standards, and spiked food samples across a range of food densities.

Keywords

Gamma spectroscopy Monte Carlo MCNP 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2015

Authors and Affiliations

  1. 1.Radiation Safety Engineering, Inc.ChandlerUSA
  2. 2.White Rock ScienceLos AlamosUSA

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