Method for manufacturing solid-state thermal neutron detectors with simultaneous high thermal neutron detection efficiency (&gt;50%) and neutron to gamma discrimination (&gt;1.0E4)

Nikolic, Rebecca J.; Conway, Adam M.; Heineck, Daniel; Voss, Lars F.; Wang, Tzu Fang; Shao, Qinghui

Method for manufacturing solid-state thermal neutron detectors with simultaneous high thermal neutron detection efficiency (>50%) and neutron to gamma discrimination (>1.0E4)

Patent · 15 October 2013

OSTI ID:1176522

Nikolic, Rebecca J.; Conway, Adam M.; Heineck, Daniel; Voss, Lars F.; Wang, Tzu Fang; Shao, Qinghui

Methods for manufacturing solid-state thermal neutron detectors with simultaneous high thermal neutron detection efficiency (>50%) and neutron to gamma discrimination (>10.sup.4) are provided. A structure is provided that includes a p+ region on a first side of an intrinsic region and an n+ region on a second side of the intrinsic region. The thickness of the intrinsic region is minimized to achieve a desired gamma discrimination factor of at least 1.0E+04. Material is removed from one of the p+ region or the n+ region and into the intrinsic layer to produce pillars with open space between each pillar. The open space is filed with a neutron sensitive material. An electrode is placed in contact with the pillars and another electrode is placed in contact with the side that is opposite of the intrinsic layer with respect to the first electrode.

Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 8,558,188

Application Number:: 13/456,182

OSTI ID:: 1176522

Country of Publication:: United States

Language:: English

References (13)

Sub-100 nm Triangular Nanopores Fabricated with the Reactive Ion Etching Variant of Nanosphere Lithography and Angle-Resolved Nanosphere Lithography Whitney, Alyson V.; Myers, Benjamin D.; Van Duyne, Richard P. Nano Letters, Vol. 4, Issue 8 https://doi.org/10.1021/nl049345w	journal	June 2004
A Handheld Neutron-Detection Sensor System Utilizing a New Class of Boron Carbide Diode Osberg, Kevin; Schemm, Nathan; Balkir, Sina IEEE Sensors Journal, Vol. 6, Issue 6 https://doi.org/10.1109/JSEN.2006.883905	journal	January 2006
Efficiencies of coated and perforated semiconductor neutron detectors Shultis, J. K.; McGregor, D. S. IEEE Transactions on Nuclear Science, Vol. 53, Issue 3 https://doi.org/10.1109/TNS.2006.872639	journal	June 2006
Thin-film-coated bulk GaAs detectors for thermal and fast neutron measurements McGregor, D. S.; Klann, R. T.; Gersch, H. K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 466, Issue 1, p. 126-141 https://doi.org/10.1016/S0168-9002(01)00835-X	journal	June 2001
Fabrication of Pillar-structured thermal neutron detectors Nikolic, Rebecca J.; Conway, Adam M.; Reinhardt, Catherine E. 2007 IEEE Nuclear Science Symposium Conference Record https://doi.org/10.1109/NSSMIC.2007.4437299	conference	October 2007
The effect of incremental gamma-ray doses and incremental neutron fluences upon the performance of self-biased ¹⁰B-coated high-purity epitaxial GaAs thermal neutron detectors Gersch, H. K.; McGregor, D. S.; Simpson, P. A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 489, Issue 1-3, p. 85-98 https://doi.org/10.1016/S0168-9002(02)00793-3	journal	August 2002
Study of the sensitivity of neutron sensors consisting of a converter plus Si charged-particle detector Wielunski, M.; Schütz, R.; Fantuzzi, E. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 517, Issue 1-3 https://doi.org/10.1016/j.nima.2003.07.032	journal	January 2004
Sputtered boron films on silicon surface barrier detectors Rose, A. Nuclear Instruments and Methods, Vol. 52, Issue 1, p. 166-170 https://doi.org/10.1016/0029-554X(67)90576-9	journal	June 1967
New surface morphology for low stress thin-film-coated thermal neutron detectors McGregor, D. S.; Klann, R. T.; Gersch, H. K. IEEE Transactions on Nuclear Science, Vol. 49, Issue 4, p. 1999-2004 https://doi.org/10.1109/TNS.2002.801697	journal	August 2002
Numerical Simulations of Pillar Structured Solid State Thermal Neutron Detector: Efficiency and Gamma Discrimination Conway, Adam M.; Wang, Tzu F.; Deo, Nimanlendu IEEE Transactions on Nuclear Science, Vol. 56, Issue 5 https://doi.org/10.1109/TNS.2009.2021474	journal	October 2009
Roadmap for high efficiency solid-state neutron detectors Nikolic, R. J.; Cheung, C. L.; Reinhardt, C. E. Optics East 2005, SPIE Proceedings https://doi.org/10.1117/12.633256	conference	October 2005
6:1 aspect ratio silicon pillar based thermal neutron detector filled with B₁₀ Nikolić, R. J.; Conway, A. M.; Reinhardt, C. E. Applied Physics Letters, Vol. 93, Issue 13, Article No. 133502 https://doi.org/10.1063/1.2985817	journal	September 2008
Pillar structured thermal neutron detector Nikolic, Rebecca J.; Conway, Adam M.; Reinhardt, Catherine E. 2008 9th International Conference on Solid-State and Integrated-Circuit Technology (ICSICT) https://doi.org/10.1109/ICSICT.2008.4735063	conference	October 2008

Similar Records

Gamma discrimination in pillar structured thermal neutron detectors

Conference · 2012 · OSTI ID:1046803

Numerical Simulations of Pillar Structured Solid State Thermal Neutron Detector Efficiency and Gamma Discrimination

Journal Article · 2008 · Transactions on Nuclear Science, vol. 56, no. 5, October 1, 2009, pp. 2802 · OSTI ID:966582

Experimental determination of gamma-ray discrimination in pillar-structured thermal neutron detectors under high gamma-ray flux

Journal Article · 2015 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment · OSTI ID:1237544

Related Subjects

36 MATERIALS SCIENCE
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Method for manufacturing solid-state thermal neutron detectors with simultaneous high thermal neutron detection efficiency (>50%) and neutron to gamma discrimination (>1.0E4)

Citation Formats

References (13)

Similar Records

Related Subjects