The neutron flux distribution in the TRIGA Mark II reactor core installed at the Applied Nuclear Energy Laboratory (L.E.N.A.) of the University of Pavia was measured through the neutron activation technique, irradiating Al-Co samples in different positions among the fuel elements and in the Central Thimble. The fast and integral fluxes were simultaneously measured in the same positions analyzing the 27Al(n,α)24Na threshold reaction and the (n,γ) activation of 59Co, respectively. These measurements were then compared with the neutron fluxes evaluated through the MCNP5 reactor model which was developed in the last years, obtaining a good agreement of the results.
Chiesa, D., Clemenza, M., Nastasi, M., Pozzi, S., Previtali, E., Scionti, G., et al. (2015). Measurement and simulation of the neutron flux distribution in the TRIGA Mark II reactor core. ANNALS OF NUCLEAR ENERGY, 85, 925-936 [10.1016/j.anucene.2015.07.011].
Measurement and simulation of the neutron flux distribution in the TRIGA Mark II reactor core
CHIESA, DAVIDE
;CLEMENZA, MASSIMILIANO;NASTASI, MASSIMILIANO CORRADO;POZZI, STEFANO;PREVITALI, EZIO;SISTI, MONICA;
2015
Abstract
The neutron flux distribution in the TRIGA Mark II reactor core installed at the Applied Nuclear Energy Laboratory (L.E.N.A.) of the University of Pavia was measured through the neutron activation technique, irradiating Al-Co samples in different positions among the fuel elements and in the Central Thimble. The fast and integral fluxes were simultaneously measured in the same positions analyzing the 27Al(n,α)24Na threshold reaction and the (n,γ) activation of 59Co, respectively. These measurements were then compared with the neutron fluxes evaluated through the MCNP5 reactor model which was developed in the last years, obtaining a good agreement of the results.
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