Measurement and calculation of leakage neutrón spectrum in light water

Abstract

Leakage neutron spectrum measurement has been made in pure light water using standard time-of-flight techniques. The measurement was com pared to calculations performed with the ENDF/GASKET scattering model in conjunction with a modified versión of the DTF-IV code in S¡, P and P1 approximations. The P0 approximation proved to be satisfactory, for the spectra studied, being the largest discrepancy between theory and measurement of 8 %.