The response of single crystal diamond detectors to 17-34 MeV neutrons

摘要

The first measurements of the response of diamond detectors to neutrons in the energy range 17-34 MeV are presented. The diamond detectors were irradiated with quasi-monoenergetic neutrons generated through the Li-7(p,n)Be-7 reaction. The measured pulse-height spectra show specific peaks associated to neutron induced reactions in carbon. The peak of the C-12(n,alpha(0))Be-9 was clearly separated from the rest of the spectra. The C-12(n,d(0))B-11 and C-12(n,p(0))B-12 peaks were clearly identified on a continuum originating from the breakup C-12(n,3 alpha) reaction, which dominates the low-energy part of the pulse-height spectra. The C-12(n, alpha(0))Be-9, C-12(n,d(0))B-11 and C-12(n,p(0))B-12 cross sections that have never been measured in this high-energy range before were determined. The measured data are compared with the European Activation File EAF-2010 library evaluated values.