Abstract
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.
| Original language | English |
|---|---|
| Article number | 164254 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 976 |
| DOIs | |
| State | Published - Oct 1 2020 |
Funding
This work was supported through subcontract number 4300090406 from CNS Y-12 National Security Complex and this material is based upon work supported under a Department of Energy Nuclear Energy University Programs Graduate Fellowship, USA. This material is based upon work supported by the U.S. Department of Energy, Office of Science, USA, Office of Basic Energy Sciences, USA, under Award Number DE-SC-0019446. Work conducted at Ohio University, USA was supported under grant numbers DE-FG02-88ER40387 and DE-NA0003883. Part of this work was conducted in the Micro-Processing Research Facility, a University of Tennessee Core Facility. Disclaimer:, “This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof”. This work was supported through subcontract number 4300090406 from CNS Y-12 National Security Complex and this material is based upon work supported under a Department of Energy Nuclear Energy University Programs Graduate Fellowship, USA . This material is based upon work supported by the U.S. Department of Energy , Office of Science, USA , Office of Basic Energy Sciences, USA , under Award Number DE-SC-0019446 . Work conducted at Ohio University, USA was supported under grant numbers DE-FG02-88ER40387 and DE-NA0003883 . Part of this work was conducted in the Micro-Processing Research Facility, a University of Tennessee Core Facility.
| Funders | Funder number |
|---|---|
| DOE Office of Nuclear Energy | |
| United States Government | |
| University of Tennessee Core Facility | |
| U.S. Department of Energy | |
| Office of Science | |
| Basic Energy Sciences | DE-FG02-88ER40387, DE-NA0003883, DE-SC-0019446 |
Keywords
- Fast neutron
- Imaging
- LISe
- LiInSe
- Lithium indium diselenide
- Spatial resolution