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Title: Shifting scintillator neutron detector

Abstract

Provided are sensors and methods for detecting thermal neutrons. Provided is an apparatus having a scintillator for absorbing a neutron, the scintillator having a back side for discharging a scintillation light of a first wavelength in response to the absorbed neutron, an array of wavelength-shifting fibers proximate to the back side of the scintillator for shifting the scintillation light of the first wavelength to light of a second wavelength, the wavelength-shifting fibers being disposed in a two-dimensional pattern and defining a plurality of scattering plane pixels where the wavelength-shifting fibers overlap, a plurality of photomultiplier tubes, in coded optical communication with the wavelength-shifting fibers, for converting the light of the second wavelength to an electronic signal, and a processor for processing the electronic signal to identify one of the plurality of scattering plane pixels as indicative of a position within the scintillator where the neutron was absorbed.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
ORNL (Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1126920
Patent Number(s):
8,664,608
Application Number:
13/510,362
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
ACO5-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Clonts, Lloyd G, Cooper, Ronald G, Crow, Jr., Morris Lowell, Hannah, Bruce W, Hodges, Jason P, Richards, John D, and Riedel, Richard A. Shifting scintillator neutron detector. United States: N. p., 2014. Web.
Clonts, Lloyd G, Cooper, Ronald G, Crow, Jr., Morris Lowell, Hannah, Bruce W, Hodges, Jason P, Richards, John D, & Riedel, Richard A. Shifting scintillator neutron detector. United States.
Clonts, Lloyd G, Cooper, Ronald G, Crow, Jr., Morris Lowell, Hannah, Bruce W, Hodges, Jason P, Richards, John D, and Riedel, Richard A. Tue . "Shifting scintillator neutron detector". United States. https://www.osti.gov/servlets/purl/1126920.
@article{osti_1126920,
title = {Shifting scintillator neutron detector},
author = {Clonts, Lloyd G and Cooper, Ronald G and Crow, Jr., Morris Lowell and Hannah, Bruce W and Hodges, Jason P and Richards, John D and Riedel, Richard A},
abstractNote = {Provided are sensors and methods for detecting thermal neutrons. Provided is an apparatus having a scintillator for absorbing a neutron, the scintillator having a back side for discharging a scintillation light of a first wavelength in response to the absorbed neutron, an array of wavelength-shifting fibers proximate to the back side of the scintillator for shifting the scintillation light of the first wavelength to light of a second wavelength, the wavelength-shifting fibers being disposed in a two-dimensional pattern and defining a plurality of scattering plane pixels where the wavelength-shifting fibers overlap, a plurality of photomultiplier tubes, in coded optical communication with the wavelength-shifting fibers, for converting the light of the second wavelength to an electronic signal, and a processor for processing the electronic signal to identify one of the plurality of scattering plane pixels as indicative of a position within the scintillator where the neutron was absorbed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {3}
}

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Works referenced in this record:

Shifting scintillator prototype large pixel wavelength-shifting fiber detector for the POWGEN3 powder diffractometer
journal, August 2004

  • Crow, M. L.; Hodges, J. P.; Cooper, R. G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 529, Issue 1-3
  • DOI: 10.1016/j.nima.2004.04.167

Dead-time optimized time-correlated photon counting instrument with synchronized, independent timing channels
journal, March 2007

  • Wahl, Michael; Rahn, Hans-J├╝rgen; Gregor, Ingo
  • Review of Scientific Instruments, Vol. 78, Issue 3
  • DOI: 10.1063/1.2715948