First evaluation of fast neutron imaging with LiInSe2 semiconductors

Fast neutron imaging is a powerful tool to investigate elemental/isotopic compositions of objects, supporting both scientific studies as well as cargo scanning. Current neutron imaging systems are faced with challenges associated with timing, detection efficiency, and/or spatial resolution. Here, we...

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Veröffentlicht in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2020-10, Vol.976 (C), p.164254, Article 164254
Hauptverfasser:	Lukosi, Eric, Hamm, Daniel, Preston, Jeff, Hausladen, Paul, Brune, Carl, Massey, Thomas, Jacobs, Devon, Burger, Arnold, Stowe, Ashley
Format:	Artikel
Sprache:	eng
Schlagworte:	Fast neutron Imaging Instruments & Instrumentation LiInSe2 LISe Lithium indium diselenide Nuclear Science & Technology Physical Sciences Physics Physics, Nuclear Physics, Particles & Fields Science & Technology Spatial resolution Technology
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Zusammenfassung:	Fast neutron imaging is a powerful tool to investigate elemental/isotopic compositions of objects, supporting both scientific studies as well as cargo scanning. Current neutron imaging systems are faced with challenges associated with timing, detection efficiency, and/or spatial resolution. Here, we report on the use of a semiconducting lithium indium diselenide neutron sensor coupled to a Timepix ASIC for fast neutron imaging. Using a 15 cm thick copper knife edge, the spatial resolution of the neutron imager was found to be 1.55 mm for 9 MeV neutrons. The experimental detection efficiency at 9 MeV was in general agreement with calculations.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/j.nima.2020.164254