Perforated diode neutron detector modules fabricated from high-purity silicon |
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| Affiliation: | 1. S.M.A.R.T. Laboratory, Department of Mechanical and Nuclear Engineering, 3002 Rathbone Hall, Kansas State University, Manhattan, KS 66506-2503, USA;2. Department of Mechanical and Nuclear Engineering, 3002 Rathbone Hall, Kansas State University, Manhattan, KS 66506-2503, USA;1. Kansas State University,Department of Mechanical and Nuclear Engineering, United States;2. Laboratory of Montecuccolino-DIENCA, University of Bologna, Italy;3. Department ofPhysics,UniversityofCoimbra,Portugal;1. Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic;2. European Commission Joint Research Centre, Institute for Transuranium Elements, 76125 Karlsruhe, Germany;3. Faculty of Mathematics and Physics, Charles University, Sokolovska 83, 186 75 Prague 8, Czech Republic;1. Department of Surgery, Baylor Scott & White, Temple, TX;2. University of Texas Medical Branch, Galveston, TX;3. Department of Medicine, Barnabas Health System, West Orange, NJ;1. Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, 30-059, Kraków, Poland;2. Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology, 76344, Eggenstein-Leopoldshafen, Germany;4. Scientific Center in Chernogolovka, Russian Academy of Sciences, Lesnaya Str. 9, Chernogolovka, 142432, Russia;3. Institute of Solid State Physics, Russian Academy of Sciences, Ac. Ossipyan Str. 2, Chernogolovka, 142432, Russia;5. National University of Science and Technology «MISIS», Moscow, 119049, Russia;6. AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30 Avenue, 30-059, Kraków, Poland;7. AGH University of Science and Technology, Academic Centre of Materials and Nanotechnology, Mickiewicza 30, 30-059, Kraków, Poland |
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| Abstract: | Compact neutron detectors are being designed and tested for use as low-power real-time personnel dosimeters. The neutron detectors are pin diodes that are mass produced from high-purity Si wafers. Each detector has thousands of circular perforations etched vertically into the device. The perforations are backfilled with 6LiF to make the pin diodes sensitive to thermal neutrons. The prototype devices deliver 4.7% thermal neutron detection efficiency while operating on only 15 V, showing a 9% increase in efficiency over identical planar devices. |
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