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SUMCOR: Cascade summing correction for volumetric sources applying MCNP6.

M S Dias1, R Semmler1, D S Moreira1

  • 1Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, Av. Prof. Lineu Prestes 2242, 05508-000 São Paulo, SP, Brazil.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|September 24, 2017
PubMed
Summary
This summary is machine-generated.

The SUMCOR code corrects for cascade summing effects in volumetric gamma-ray sources. It accurately calculates efficiencies, improving radionuclide analysis by comparing results with intercomparison data.

Keywords:
Cascade summingGamma-ray emissionHPGeMCNP6Monte Carlo

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Area of Science:

  • Nuclear Physics
  • Radiochemistry
  • Radiation Detection and Measurement

Background:

  • Cascade summing effects can lead to underestimation of radionuclide activity in gamma-ray spectrometry.
  • Accurate correction is crucial for reliable quantitative analysis of volumetric radioactive sources.

Purpose of the Study:

  • To describe the SUMCOR code for cascade summing correction of volumetric sources.
  • To validate the code's performance using experimental data from international intercomparisons.

Main Methods:

  • Utilizing MCNP6 for particle transport simulation of volumetric sources.
  • Calculating total and full energy peak (FEP) efficiencies for gamma-rays and X-rays.
  • Applying matrix formalism for cascade summing correction.

Main Results:

  • SUMCOR code successfully corrects for cascade summing effects.
  • Calculated efficiencies align with experimental data from ICRM-GSWG intercomparisons.
  • Code performance is comparable to other participants in intercomparisons.

Conclusions:

  • The SUMCOR code provides an effective method for cascade summing correction in volumetric sources.
  • The code's accuracy is validated by its performance in international intercomparisons.
  • SUMCOR enhances the reliability of radionuclide activity measurements.