A method for gamma background subtraction using Visual Basic for Applications code with Microsoft Excel

  • J. A. Suarez-NavarroEmail author
  • Ll. Pujol
  • M. J. Suarez-Navarro
  • M. Arana
  • G. Hernáiz


This work proposes a method for gamma background subtraction by combining several background spectra acquired during short-term measurements (100,000 s). A dedicated Visual Basic code has been developed, that performs an energy correction due to gain drifts, via interpolation of the counts, and finally a summation of several background spectra. Three interpolations were tested: linear, quadratic and cubic, from which the linear was selected after checking the Gaussian fit and accuracy of the areas of the resulting photopeaks. The activity concentration results using the proposed algorithm in two intercomparable exercises and different matrices showed the reproducibility of the proposed method.


Gamma spectrometry Background fluctuation Genie-2000 Microsoft Excel HPGe detector 


Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interest.

Supplementary material

10967_2018_6411_MOESM1_ESM.docx (80 kb)
Supplementary material 1 (DOCX 80 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT – Dpto. Medio Ambiente)MadridSpain
  2. 2.Centro de Estudios y Experimentación de Obras Públicas (CEDEX)MadridSpain
  3. 3.Departamento de Hidráulica, Energía y MedioambienteUniversidad Politécnica de Madrid, ETSI CaminosMadridSpain

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