Determination of the uncertainties associated to the use of different nuclear data libraries in the analysis of extended-range rem-meters

Roberto García-Baonza, Gonzalo F. García-Fernández, Eduardo Gallego, Lenin E. Cevallos-Robalino, Óscar Cabellos

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In proton therapy centers stray neutron radiation of up to 230–250 MeV is yielded by (p, Xn) nuclear reactions. To monitor ambient dose in such facilities, extended-range rem-meters are needed. The aim of this project was to characterize the response of two extended-range rem-meters, WENDI-II and LUPIN-II, by Monte Carlo methods, for energies ranging from 10−9 MeV up to 230 MeV. Different nuclear data libraries (ENDF/B-VII.1, TENDL2017, TENDL2019, JEFF-3.3) have been used, determining the uncertainties associated with the application of the libraries in the calculation of the response functions of both monitors. The differences found are very significant at energies around 150–200 MeV. This is an issue for predicting by Monte Carlo methods the response of these instruments at high energies. The results point to the necessity of testing experimentally the response of rem-meters at 150 MeV–200 MeV neutron beams.

Original languageEnglish
Article number110012
JournalApplied Radiation and Isotopes
Volume179
DOIs
StatePublished - Jan 2022

Bibliographical note

Funding Information:
This work has developed under the industrial Doctorate Program IND2017/AMB-7797, funded by Madrid Autonomous Region (CAM), Spain.

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

  • LUPIN-II
  • MCNP6
  • Nuclear data libraries
  • Proton therapy
  • WENDI-II

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