Direction sensitive neutron detector

Title: Direction sensitive neutron detector

A neutron detector includes a pressure vessel, an electrically conductive field cage assembly within the pressure vessel and an imaging subsystem. A pressurized gas mixture of CF.sub.4, .sup.3He and .sup.4He at respective partial pressures is used. The field cage establishes a relatively large drift region of low field strength, in which ionization electrons generated by neutron-He interactions are directed toward a substantially smaller amplification region of substantially higher field strength in which the ionization electrons undergo avalanche multiplication resulting in scintillation of the CF.sub.4 along scintillation tracks. The imaging system generates two-dimensional images of the scintillation patterns and employs track-finding to identify tracks and deduce the rate and direction of incident neutrons. One or more photo-multiplier tubes record the time-profile of the scintillation tracks permitting the determination of the third coordinate.

Inventors:: Ahlen, Steven; Fisher, Peter; Dujmic, Denis; Wellenstein, Hermann F.; Inglis, Andrew

Issue Date:: 2017-01-31

OSTI Identifier:: 1341874

Assignee:: Trustees of Boston University (Boston, MA) CHO

Patent Number(s):: 9,557,423

Application Number:: 12/893,221

Contract Number:: FG02-06ER41425; FG02-05ER41385; FG02-05ER41360

Resource Relation:: Patent File Date: 2010 Sep 29

Research Org:: Trustees of Boston University, Boston, MA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

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Works referenced in this record:

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