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

doi:10.1117/12.777863

15 April 2008 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

Author Affiliations +

Proceedings Volume 6945, Optics and Photonics in Global Homeland Security IV; 69451A (2008) https://doi.org/10.1117/12.777863
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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 μm 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.

Citation Download Citation

Anton S. Tremsin, Jason B. McPhate, John V. Vallerga, Oswald H. W. Siegmund, W. Bruce Feller, Lowell Crow, and Ron G. Cooper "High efficiency angular selective detection of thermal and cold neutrons", Proc. SPIE 6945, Optics and Photonics in Global Homeland Security IV, 69451A (15 April 2008); https://doi.org/10.1117/12.777863

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