NEUTRON SPECTROMETRY WITH BUBBLE DAMAGE NEUTRON DETECTORS

A neutron spectrometer based on a set of bubble damage detectors is av ailable, designed for neutrons with energies from 10 keV to 20 MeV. It s capabilities in the fields behind the shielding of high energy parti cle accelerators have been studied in two reference fields created in the Joint Institute of Nuclear Research behind the shielding of a 660 MeV proton phasotron. It was found out that the spectra estimation fol lowing from the neutron bubble detector spectrometer correlates reason ably well with the spectra obtained through a Bonner spectrometer comb ined with the C-12 (n,2n) activation reaction.