Diamond detector for high rate monitors of fast neutrons beams

L. Giacomelli, M. Rebai, E. Perelli Cippo, M. Tardocchi, A. Fazzi, C. Andreani, A. Pietropaolo, C.D. Frost, N. Rhodes, E. Schooneveld, G. Gorini

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

A fast neutron detection system suitable for high rate measurements is presented. The detector is based on a commercial high purity single crystal diamond (SDD) coupled to a fast digital data acquisition system. The detector was tested at the ISIS pulsed spallation neutron source. The SDD event signal was digitized at 1 GHz to reconstruct the deposited energy (pulse amplitude) and neutron arrival time; the event time of flight (ToF) was obtained relative to the recorded proton beam signal t0. Fast acquisition is needed since the peak count rate is very high (∼800 kHz) due to the pulsed structure of the neutron beam. Measurements at ISIS indicate that three characteristics regions exist in the biparametric spectrum: i) background gamma events of low pulse amplitudes; ii) low pulse amplitude neutron events in the energy range Edep= 1.5-7 MeV ascribed to neutron elastic scattering on12C; iii) large pulse amplitude neutron events with En< 7 MeV ascribed to12C(n,α)9Be and 12C(n,n')3α. © 2012 American Institute of Physics.
Original languageEnglish
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventInternational Conference on Fusion for Neutrons and Subcritical Nuclear Fission - , Italy
Duration: 1 Jan 2012 → …

Conference

ConferenceInternational Conference on Fusion for Neutrons and Subcritical Nuclear Fission
CountryItaly
Period1/1/12 → …

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Giacomelli, L., Rebai, M., Perelli Cippo, E., Tardocchi, M., Fazzi, A., Andreani, C., ... Gorini, G. (2012). Diamond detector for high rate monitors of fast neutrons beams. Paper presented at International Conference on Fusion for Neutrons and Subcritical Nuclear Fission, Italy. https://doi.org/10.1063/1.4706884