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Open AccessFeature PaperArticle

Neutron Imaging with Timepix Coupled Lithium Indium Diselenide

1
Department of Nuclear Engineering, The University of Tennessee, 308 Pasqua Engineering Building, Knoxville, TN 37996, USA
2
Y-12 National Security Complex, New Hope Center, 602 Scarboro Road, Oak Ridge, TN 37830, USA
3
Department of Life and Physical Sciences, Fisk University, 1000 17th Avenue N., Nashville, TN 37208, USA
*
Author to whom correspondence should be addressed.
J. Imaging 2018, 4(1), 10; https://doi.org/10.3390/jimaging4010010
Received: 31 October 2017 / Revised: 12 December 2017 / Accepted: 14 December 2017 / Published: 29 December 2017
(This article belongs to the Special Issue Neutron Imaging)
The material lithium indium diselenide, a single crystal neutron sensitive semiconductor, has demonstrated its capabilities as a high resolution imaging device. The sensor was prepared with a 55 μ m pitch array of gold contacts, designed to couple with the Timepix imaging ASIC. The resulting device was tested at the High Flux Isotope Reactor, demonstrating a response to cold neutrons when enriched in 95% 6 Li. The imaging system performed a series of experiments resulting in a <200 μ m resolution limit with the Paul Scherrer Institute (PSI) Siemens star mask and a feature resolution of 34 μ m with a knife-edge test. Furthermore, the system was able to resolve the University of Tennessee logo inscribed into a 3D printed 1 cm 3 plastic block. This technology marks the application of high resolution neutron imaging using a direct readout semiconductor. View Full-Text
Keywords: lithium indium diselenide; neutron imaging; semiconductor detector; thermal neutron imaging; timepix imager lithium indium diselenide; neutron imaging; semiconductor detector; thermal neutron imaging; timepix imager
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Herrera, E.; Hamm, D.; Stowe, A.; Preston, J.; Wiggins, B.; Burger, A.; Lukosi, E. Neutron Imaging with Timepix Coupled Lithium Indium Diselenide. J. Imaging 2018, 4, 10.

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