TY - JOUR
T1 - Estimation with Monte Carlo of thermal neutrons in the FANT, using 252Cf and 241Am/9Be neutron source
AU - Cevallos-Robalino, Lenin E.
AU - García-Fernández, Gonzalo
AU - Gallego, Eduardo
AU - Vega-Carrillo, Hector Rene
AU - García-Baonza, Roberto
AU - Barcia-Ayala, Orlando
AU - Veliz, Bremnen
N1 - Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/4
Y1 - 2023/4
N2 - The thermal neutron irradiation device (FANT), developed at the Neutron Measurements Laboratory of the Energy Engineering Department at Universidad Politécnica de Madrid, is a high-density polyethylene regular parallelepiped, with a rather uniform neutron fluence inside its irradiation chamber. It uses a Am95241/Be49 neutron source aiming to provide thermal neutron fluence rates. Neutron spectra and neutron fluences were estimated with Monte Carlo methods in the FANT irradiation chamber when a Cf98252 neutron source is used and were compared with the results obtained with the Am95241/Be49 source. Regardless of the neutron source, the largest contribution is due to thermal neutrons, producing also epithermal and fast neutrons. Per neutron emitted by the source, the use of Cf98252 produces a larger amount of neutrons.
AB - The thermal neutron irradiation device (FANT), developed at the Neutron Measurements Laboratory of the Energy Engineering Department at Universidad Politécnica de Madrid, is a high-density polyethylene regular parallelepiped, with a rather uniform neutron fluence inside its irradiation chamber. It uses a Am95241/Be49 neutron source aiming to provide thermal neutron fluence rates. Neutron spectra and neutron fluences were estimated with Monte Carlo methods in the FANT irradiation chamber when a Cf98252 neutron source is used and were compared with the results obtained with the Am95241/Be49 source. Regardless of the neutron source, the largest contribution is due to thermal neutrons, producing also epithermal and fast neutrons. Per neutron emitted by the source, the use of Cf98252 produces a larger amount of neutrons.
KW - Am95241/Be49
KW - Cf98252
KW - FANT
KW - Monte Carlo
KW - Neutron spectra
UR - http://www.scopus.com/inward/record.url?scp=85147119640&partnerID=8YFLogxK
U2 - 10.1016/j.apradiso.2023.110694
DO - 10.1016/j.apradiso.2023.110694
M3 - Article
AN - SCOPUS:85147119640
SN - 0969-8043
VL - 194
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
M1 - 110694
ER -