TY - JOUR
T1 - Determination of the uncertainties associated to the use of different nuclear data libraries in the analysis of extended-range rem-meters
AU - García-Baonza, Roberto
AU - García-Fernández, Gonzalo F.
AU - Gallego, Eduardo
AU - Cevallos-Robalino, Lenin E.
AU - Cabellos, Óscar
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2022/1
Y1 - 2022/1
N2 - 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.
AB - 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.
KW - LUPIN-II
KW - MCNP6
KW - Nuclear data libraries
KW - Proton therapy
KW - WENDI-II
UR - http://www.scopus.com/inward/record.url?scp=85118484446&partnerID=8YFLogxK
U2 - 10.1016/j.apradiso.2021.110012
DO - 10.1016/j.apradiso.2021.110012
M3 - Article
C2 - 34740060
AN - SCOPUS:85118484446
SN - 0969-8043
VL - 179
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
M1 - 110012
ER -