Fiber optic thermal/fast neutron and gamma ray scintillation detector

Neal, John S; Mihalczo, John T

Title: Fiber optic thermal/fast neutron and gamma ray scintillation detector

Abstract

A system for detecting fissile and fissionable material originating external to the system includes: a .sup.6Li loaded glass fiber scintillator for detecting thermal neutrons, x-rays and gamma rays; a fast scintillator for detecting fast neutrons, x-rays and gamma rays, the fast scintillator conjoined with the glass fiber scintillator such that the fast scintillator moderates fast neutrons prior to their detection as thermal neutrons by the glass fiber scintillator; and a coincidence detection system for processing the time distributions of arriving signals from the scintillators.

Inventors:

Neal, John S ^[1]; Mihalczo, John T ^[2]

Knoxville, TN
Oak Ridge, TN

Issue Date:: 2007-10-30

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 918906

Patent Number(s):: 7288771

Application Number:: 11/549,269

Assignee:: UT-Battelle LLC (Oak Ridge, TN)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

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G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G01T1/201 - {using scintillating fibres}
G01T1/2018 - {Scintillation-photodiode combination}
G01T1/167 - Measuring radioactive content of objects, e.g. contamination
G01T3/06 - with scintillation detectors
G01T1/2008 - {using a combination of different types of scintillation detectors, e.g. phoswich}

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DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Neal, John S, and Mihalczo, John T. Fiber optic thermal/fast neutron and gamma ray scintillation detector.  United States: N. p., 2007. 
        Web.

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                    Neal, John S, & Mihalczo, John T. Fiber optic thermal/fast neutron and gamma ray scintillation detector.  United States.

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                    Neal, John S, and Mihalczo, John T. Tue .  
        "Fiber optic thermal/fast neutron and gamma ray scintillation detector".  United States.  https://www.osti.gov/servlets/purl/918906.

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@article{osti_918906,

  title        = {Fiber optic thermal/fast neutron and gamma ray scintillation detector},

  author       = {Neal, John S and Mihalczo, John T},

  abstractNote = {A system for detecting fissile and fissionable material originating external to the system includes: a .sup.6Li loaded glass fiber scintillator for detecting thermal neutrons, x-rays and gamma rays; a fast scintillator for detecting fast neutrons, x-rays and gamma rays, the fast scintillator conjoined with the glass fiber scintillator such that the fast scintillator moderates fast neutrons prior to their detection as thermal neutrons by the glass fiber scintillator; and a coincidence detection system for processing the time distributions of arriving signals from the scintillators.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2007},

  month        = {10}

}

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Works referenced in this record:

Development of a phoswich detector to detect neutrons and charged particles for space application
journal, June 1998

Takada, M.; Taniguchi, S.; Nakamura, T.
IEEE Transactions on Nuclear Science, Vol. 45, Issue 3
https://doi.org/10.1109/23.682656

Phoswich detectors for simultaneous counting of α-, β(γ)-rays and neutrons
journal, March 1997

Usuda, Shigekazu; Sakurai, Satoshi; Yasuda, Kenichiro
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 388, Issue 1-2, p. 193-198
https://doi.org/10.1016/S0168-9002(97)00327-6

Recent developments in neutron detection
journal, April 2000

Peurrung, A.J
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 443, Issue 2-3, p. 400-415
https://doi.org/10.1016/S0168-9002(99)01165-1

Physical description of nuclear materials identification system (NMIS) signatures
journal, August 2000

Mihalczo, J. T.; Mullens, J. A.; Mattingly, J. K.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 450, Issue 2-3, p. 531-555
https://doi.org/10.1016/S0168-9002(00)00304-1

Scintillating-glass-fiber neutron sensors
journal, December 1994

Abel, K. H.; Arthur, R. J.; Bliss, M.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 353, Issue 1-3
https://doi.org/10.1016/0168-9002(94)91615-2

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Title: Fiber optic thermal/fast neutron and gamma ray scintillation detector

Abstract

Citation Formats

Development of a phoswich detector to detect neutrons and charged particles for space application journal, June 1998

Phoswich detectors for simultaneous counting of α-, β(γ)-rays and neutrons journal, March 1997

Recent developments in neutron detection journal, April 2000

Physical description of nuclear materials identification system (NMIS) signatures journal, August 2000

Scintillating-glass-fiber neutron sensors journal, December 1994

Development of a phoswich detector to detect neutrons and charged particles for space application
journal, June 1998

Phoswich detectors for simultaneous counting of α-, β(γ)-rays and neutrons
journal, March 1997

Recent developments in neutron detection
journal, April 2000

Physical description of nuclear materials identification system (NMIS) signatures
journal, August 2000

Scintillating-glass-fiber neutron sensors
journal, December 1994