Detection and positioning of radioactive sources using a four-detector response algorithm

Michael J. Willis; Steven E. Skutnik; Howard L. Hall

doi:10.1016/j.nima.2014.08.033

Detection and positioning of radioactive sources using a four-detector response algorithm

Michael J. Willis, Steven E. Skutnik, Howard L. Hall

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

A method for detecting and identifying radioactive gamma-ray sources along with determining a directional bearing is described. This method is based upon comparing the relative intensities of four detectors placed side by side in a four-quadrant formation, allowing for the system to take advantage of shadowing in the occluded array of detectors. Based on this shielding principle, a fuzzy logic algorithm is used to analyze the gross count response of each individual detector with respect to the other three. The result of this algorithm is a numerical result that can be converted to a directional bearing in a 360° x-y plane.

Original language	English
Pages (from-to)	445-452
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	767
DOIs	https://doi.org/10.1016/j.nima.2014.08.033
State	Published - Dec 11 2014
Externally published	Yes

Keywords

Direction
Fuzzy logic
Gamma radiation
Nuclear security
Position
Radiation

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10.1016/j.nima.2014.08.033

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abstract = "A method for detecting and identifying radioactive gamma-ray sources along with determining a directional bearing is described. This method is based upon comparing the relative intensities of four detectors placed side by side in a four-quadrant formation, allowing for the system to take advantage of shadowing in the occluded array of detectors. Based on this shielding principle, a fuzzy logic algorithm is used to analyze the gross count response of each individual detector with respect to the other three. The result of this algorithm is a numerical result that can be converted to a directional bearing in a 360° x-y plane.",

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Detection and positioning of radioactive sources using a four-detector response algorithm. / Willis, Michael J.; Skutnik, Steven E.; Hall, Howard L.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 767, 11.12.2014, p. 445-452.

Research output: Contribution to journal › Article › peer-review

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T1 - Detection and positioning of radioactive sources using a four-detector response algorithm

AU - Willis, Michael J.

AU - Skutnik, Steven E.

AU - Hall, Howard L.

PY - 2014/12/11

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N2 - A method for detecting and identifying radioactive gamma-ray sources along with determining a directional bearing is described. This method is based upon comparing the relative intensities of four detectors placed side by side in a four-quadrant formation, allowing for the system to take advantage of shadowing in the occluded array of detectors. Based on this shielding principle, a fuzzy logic algorithm is used to analyze the gross count response of each individual detector with respect to the other three. The result of this algorithm is a numerical result that can be converted to a directional bearing in a 360° x-y plane.

AB - A method for detecting and identifying radioactive gamma-ray sources along with determining a directional bearing is described. This method is based upon comparing the relative intensities of four detectors placed side by side in a four-quadrant formation, allowing for the system to take advantage of shadowing in the occluded array of detectors. Based on this shielding principle, a fuzzy logic algorithm is used to analyze the gross count response of each individual detector with respect to the other three. The result of this algorithm is a numerical result that can be converted to a directional bearing in a 360° x-y plane.

KW - Direction

KW - Fuzzy logic

KW - Gamma radiation

KW - Nuclear security

KW - Position

KW - Radiation

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SN - 0168-9002

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SP - 445

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Detection and positioning of radioactive sources using a four-detector response algorithm

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Keywords

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