Recursive estimation for the tracking of radioactive sources

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This paper describes a recursive estimation algorithm used for tracking the physical location of radioactive sources in real-time as they are moved around in a facility. The algorithm is related to a nonlinear least squares estimation that minimizes the change in the source location and the deviation between measurements and model predictions simultaneously. The measurements used to estimate position consist of four count rates reported by four different gamma ray detectors. There is an uncertainty in the source location due to the large variance of the detected count rate. This work represents part of a suite of tools which will ... continued below

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6 p.

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Howse, J.W.; Ticknor, L.O. & Muske, K.R. December 31, 1998.

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Description

This paper describes a recursive estimation algorithm used for tracking the physical location of radioactive sources in real-time as they are moved around in a facility. The algorithm is related to a nonlinear least squares estimation that minimizes the change in the source location and the deviation between measurements and model predictions simultaneously. The measurements used to estimate position consist of four count rates reported by four different gamma ray detectors. There is an uncertainty in the source location due to the large variance of the detected count rate. This work represents part of a suite of tools which will partially automate security and safety assessments, allow some assessments to be done remotely, and provide additional sensor modalities with which to make assessments.

Physical Description

6 p.

Notes

INIS; OSTI as DE99002751

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  • 1999 American control conference, San Diego, CA (United States), 2-4 Jun 1999

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  • Other: DE99002751
  • Report No.: LA-UR--98-4026
  • Report No.: CONF-990602--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 350997
  • Archival Resource Key: ark:/67531/metadc683236

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  • December 31, 1998

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 29, 2016, 7:16 p.m.

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Howse, J.W.; Ticknor, L.O. & Muske, K.R. Recursive estimation for the tracking of radioactive sources, article, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc683236/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.