Author(s): I.I. Bashter and P.N. Cooper
Article publication date: 1987-08-01
Vol. 5 No. 2 (yearly), pp. 289-297.
141
Keywords
neutron, physics, zero crossing techniques
Abstract
The neutron fluxes from an Am/Be source and from a graphite slab bombarded with 14.1 MeV neutrons have been measured by an NE-213 organic scintillator using a zero cross-over technique and compared with that measured by a charge comparison method. The accuracy of the measured Am/Be spectrum was examined using the standard spectrum and other measurements. Measured spectra from the graphite assembly were tested using the calculated results of the one dimensional discrete ordinate code ANISN using the ZZFEWG 1/31-1F neutron library. The experimental technique, in this work, is shown to be useful in measuring the neutrons in the range 14.1 MeV to 1.8 MeV for D-T fusion reactor neutronics