Measurements of 14 MeV neutron multiplication in spherical beryllium shells

Analysis of the KANT experiment on beryllium using TRIPOLI-4 Monte Carlo code

“…Comparing with MCNP calculations published on references [9,10], the TRIPOLI-4 C/E values on partial leakage multiplication have been improved. The TRIPOLI-4 C/E values on total leakage are between 1.0 and 1.03 when the Bonner spheres measurements are taken into account.…”

“…lium shells of 17, 10, and 5 cm thickness. The Bonner spheres results [10] are also included to compare with the total calculated leakage. The calculated neutron leakage multiplication around 1.7 from the 17 cm Be sphere is the most important one among the three calculated cases and, due to its 17 cm thickness to slow down neutrons, the first group contribution around 0.4 is the smallest of the three cases.…”

“…For the present KANT neutron leakage multiplications calculations, some simplifications in TRIPOLI-4 modeling have been made according to the benchmark documents [6,9,10] and they are listed in the following lines:…”

“…Neutron leakage spectra were recorded from the spherical beryllium shells between the source energy and 10 eV [6,9,10].…”