Recursive Estimation for the Tracking of Radioactive Sources

Conference · Mon Feb 01 04:00:00 EST 1999

OSTI ID:7414

Howse, J W; Muske, K R; Ticknor, L O

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 al- gorithm is a nonlinear least squares estimation that mini- mizes the change in, the source location and the deviation between measurements and model predictions simultane- ously. The measurements used to estimate position consist of four count rates reported by four different gamma ray de tectors. There is an uncertainty in the source location due to the variance of the detected count rate. This work repre- sents 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.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7414
• Report Number(s): LA-UR-99-909; ON: DE00007414
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
66 PHYSICS
Algorithms
Gamma Detection
Nuclear Materials Management
Radiation Sources