Method for the identification of 60Co in an industrial gamma irradiator

Authors

  • Arturo Angeles Instituto Nacional de Investigaciones Nucleares
  • Marco Antonio Ruiz Instituto Nacional de Investigaciones Nucleares
  • M. T. Garcia Instituto Nacional de Investigaciones Nucleares
  • S. J. Benítez Instituto Nacional de Investigaciones Nucleares
  • M. J. Flores Instituto Nacional de Investigaciones Nucleares

DOI:

https://doi.org/10.31349/SuplRevMexFis.4.011006

Keywords:

Gamma spectrum; pileup; industrial irradiator; CdZnTe

Abstract

This study presents a method for the identification of a set of radioactive sources of 60Co, in an industrial irradiator. This identification was requested by a Mexican regulatory authority. To fulfill this request, a method was developed to make the identification by the gamma spectrometry method. The complexity in the measurement lies in the fact that the set of sources has an activity of 500,000 Ci of 60Co and the identification is complicated because with that gamma intensity one has to have a strategy to reduce the phenomena of saturation, pile up and dead time and achieve that photopeaks generated in the gamma spectrum of the gamma energies of 60Co are clearly visible.
A low efficiency and relatively high resolution CZTe detector, was selected, which was placed in an acrylic box with a collimated lead shield to carry out the measurement inside the irradiator pool to reduce scattered radiation and to be able to clearly appreciate the spectrum gamma of 60Co.

Author Biography

Marco Antonio Ruiz , Instituto Nacional de Investigaciones Nucleares

Departament of Radiation Protection 

Professional level 21 

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Published

2023-06-12

How to Cite

1.
Angeles A, Ruiz MA, Garcia MT, Benítez SJ, Flores MJ. Method for the identification of 60Co in an industrial gamma irradiator. Supl. Rev. Mex. Fis. [Internet]. 2023 Jun. 12 [cited 2024 Apr. 14];4(1):011006 1-. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6761