Calibration of the Fast Neutron Imaging Telescope (FNIT) Prototype Detector

Bravar, U. et al. (2009) Calibration of the Fast Neutron Imaging Telescope (FNIT) Prototype Detector. IEEE Transactions on Nuclear Science, 56(5), pp. 2947-2954. (doi:10.1109/TNS.2009.2028025)

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Publisher's URL: http://dx.doi.org/10.1109/TNS.2009.2028025

Abstract

The paper describes a novel detector for neutrons in the 1 to 20-MeV energy range with combined imaging and spectroscopic capabilities. The Fast Neutron Imaging Telescope (FNIT) was designed to detect solar neutrons from spacecraft deployed to the inner heliosphere. However, the potential application of this instrument to Special Nuclear Material (SNM) identification was also examined. In either case, neutron detection relies on double elastic neutron-proton (n-p) scattering in liquid scintillator. We optimized the design of FNIT through a combination of Monte Carlo simulations and lab measurements. We then assembled a scaled-down version of the full detector and assessed its performance by exposing it to a neutron beam and an SNM source. The results from these tests, which were used to characterize the response of the complete FNIT detector to fast neutrons, are presented herein.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Mallik, Mr Procheta
Authors: Bravar, U., Woolf, R.S., Bruillard, P.J., Fluckiger, E.O., Legere, J.S., MacKinnon, A.L., Macri, J.R., Mallik, P.C., McConnell, M.L., Pirard, B., and Ryan, J.M.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:IEEE Transactions on Nuclear Science
ISSN:0018-9499

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
465931Solar, stellar and cosmological plasmas: a synthesis of data, modelling and theory.Declan DiverScience & Technologies Facilities Council (STFC)ST/F002149/1Physics and Astronomy