Title of article
Fast neutron detection with a segmented spectrometer
Author/Authors
Langford، نويسنده , , T.J. and Bass، نويسنده , , C.D. and Beise، نويسنده , , E.J. and Breuer، نويسنده , , H. and Erwin، نويسنده , , D.K. and Heimbach، نويسنده , , C.R. and Nico، نويسنده , , J.S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2015
Pages
10
From page
78
To page
87
Abstract
A fast neutron spectrometer consisting of segmented plastic scintillator and 3He proportional counters was constructed for the measurement of neutrons in the energy range 1–200 MeV. We discuss its design, principles of operation, and the method of analysis. The detector is capable of observing very low neutron fluxes in the presence of ambient gamma background and does not require scintillator pulse-shape discrimination. The spectrometer was characterized for its energy response in fast neutron fields of 2.5 MeV and 14 MeV, and the results are compared with Monte Carlo simulations. Measurements of the fast neutron flux and energy response at 120 m above sea-level (39.130°N, 77.218°W) and at a depth of 560 m in a limestone mine are presented. Finally, the design of a spectrometer with improved sensitivity and energy resolution is discussed.
Keywords
Underground physics , Capture gating , Low background , Neutron spectrometer , Fast neutron detection
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2015
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2196940
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