High efficiency angular selective detection of thermal and cold neutrons

Anton S. Tremsin, Jason B. McPhate, John V. Vallerga, Oswald H.W. Siegmund, W. Bruce Feller, Lowell Crow, Ron G. Cooper

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

We present a new neutron detection technology capable of high efficiency detection of thermal and cold neutrons with high spatial resolution. It is based on neutron-sensitive microchannel plates (MCPs) converting incident neutrons to electrons, which are then amplified and detected by a variety of different position sensitive readouts. The detection efficiency of those detectors can exceed 50% for thermal neutrons, while the spatial resolution can be better than 20 pm FWHM. Another attractive feature is the capability to time-stamp each incoming neutron with -microsecond resolution, allowing energy/material resolved studies with pulsed neutron sources. The MCP-based neutron detectors can also be combined with novel MCP-based neuron optics, allowing high resolution angular selective neutron imaging.

Original languageEnglish
Title of host publicationOptics and Photonics in Global Homeland Security IV
DOIs
StatePublished - 2008
EventOptics and Photonics in Global Homeland Security IV - Orlando, FL, United States
Duration: Mar 17 2008Mar 20 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6945
ISSN (Print)0277-786X

Conference

ConferenceOptics and Photonics in Global Homeland Security IV
Country/TerritoryUnited States
CityOrlando, FL
Period03/17/0803/20/08

Keywords

  • High detection efficiency
  • High spatial resolution
  • Neutron counting
  • Neutron optics

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