A Neutron Sensitive Microchannel Plate Detector with Cross Delay Line Readout

Conference · Sun Jan 01 00:00:00 EST 2012

DOI:https://doi.org/10.1109/NSSMIC.2012.6551091· OSTI ID:1059723

Berry, Kevin D. ^[1]; Bilheux, Hassina Z. ^[1]; Crow, Lowell ^[1]; Diawara, Yacouba ^[1]; Feller, W. Bruce ^[2]; Iverson, Erik B. ^[1]; Martin, Adrian ^[3]; Robertson, J. Lee ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Nova Scientific, Inc., Sturbridge, MA (United States)
3. Sensor Sciences, LLC (United States)

Microchannel plates containing neutron absorbing elements such as boron and gadolinium in the bulk glass are used as the sensing element in high spatial resolution, high rate neutron imaging systems. In this paper we describe one such device, using both ¹⁰B and natural Gd, which employs cross delay line signal readout, with time-of-flight capability. This detector has a measured spatial resolution under 40 m FWHM, thermal neutron efficiency of 19%, and has recorded rates in excess of 500 kHz. A physical and functional description is presented, followed by a discussion of measurements of detector performance and a brief survey of some practical applications.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor, Spallation Neutron Source
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1059723
• Resource Relation: Conference: 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC/RTSD) , Anaheim, CA (United States), 27 Oct - 3 Nov 2012
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
THERMAL NEUTRONS
MICROCHANNEL ELECTRON MULTIPLIERS
SPATIAL RESOLUTION
GADOLINIUM
READOUT SYSTEMS
BORON 10
TIME-OF-FLIGHT METHOD
EFFICIENCY
GLASS
PERFORMANCE
NEUTRON DETECTORS