SUMCOR: Cascade summing correction for volumetric sources applying MCNP6

• Published in: Applied radiation and isotopes Vol. 134; pp. 205 - 211
• Main Authors: Dias, M.S., Semmler, R., Moreira, D.S., de Menezes, M.O., Barros, L.F., Ribeiro, R.V., Koskinas, M.F.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.04.2018
• Subjects: Cascade summing; Gamma-ray emission; HPGe; MCNP6; Monte Carlo; MCNP6; Gamma-ray emission; Monte Carlo; Cascade summing; HPGe
• ISSN: 0969-8043; 1872-9800
• DOI: 10.1016/j.apradiso.2017.09.014

The main features of code SUMCOR developed for cascade summing correction for volumetric sources are described. MCNP6 is used to track histories starting from individual points inside the volumetric source, for each set of cascade transitions from the radionuclide. Total and FEP efficiencies are calculated for all gamma-rays and X-rays involved in the cascade. Cascade summing correction is based on the matrix formalism developed by Semkow et al. (1990). Results are presented applying the experimental data sent to the participants of two intercomparisons organized by the ICRM-GSWG and coordinated by Dr. Marie-Cristine Lépy from the Laboratoire National Henri Becquerel (LNE-LNHB), CEA, in 2008 and 2010, respectively and compared to the other participants in the intercomparisons. •Code SUMCOR developed for cascade summing correction is described.•MCNP6 is used to track individual points inside the volumetric source.•Cascade summing correction is based on the matrix formalism.•Results are compared with two intercomparisons organized by the ICRM-GSWG.