期刊
APPLIED PHYSICS LETTERS
卷 102, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4792703
关键词
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资金
- US Department of Homeland Security, Domestic Nuclear Detection Office [IAA HSHQDC-07-X-00213]
- U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344, LLNL-JRNL-579193]
The pillar structured thermal neutron detector is based on the combination of high aspect ratio silicon p-i-n pillars surrounded by the neutron converter material B-10. By etching high aspect ratio pillar structures into silicon, the result is a device that efficiently absorbs the thermal neutron flux by accommodating a large volume fraction of B-10 within the silicon pillar array. Here, we report a thermal neutron detection efficiency of 48.5% using a 50 mu m pillar array with an aspect ratio of 25:1. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4792703]
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