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Title: Generalized Multicoincidence Analysis Methods

Abstract

The ability to conduct automated trace radionuclide analysis at or near the sample collection point would provide a valuable tool for emergency response, environmental monitoring, and verification of treaties and agreements. Pacific Northwest National Laboratory is developing systems for this purpose based on dual gamma-ray spectrometers, e.g. NaI(TI) or HPGe, combined with thin organic scintillator sensors to detect light charged particles. Translating the coincident signatures recorded by these systems, which include beta-gamma, gamma-gamma and beta-gamma-gamma, into the concentration of detectable radionuclides in the sample requires generalized multicoincidence analysis tools. The development and validation of the Coincidence Lookup Library, which currently contains the probabilities of single and coincidence signatures from more than 420 isotopes, is described. Also discussed is a method to calculate the probability of observing a coincidence signature which incorporates true coincidence summing effects. These effects are particularly important for high-geometric-efficiency detection systems. Finally, a process for verifying the integrated analysis software package is demonstrated using GEANT 4 simulations of the prototype detector systems.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
881928
Report Number(s):
PNNL-SA-43563
Journal ID: ISSN 0018-9499; IETNAE; NN2001000; TRN: US0603039
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: IEEE Transactions on Nuclear Science, 53(1 PT 2):351-355; Journal Volume: 53; Journal Issue: 1 PT 2
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHARGED PARTICLES; DETECTION; MONITORING; PHOSPHORS; PROBABILITY; RADIOISOTOPES; SPECTROMETERS; TREATIES; VALIDATION; VERIFICATION; multicoincidence analysis trace radionuclide analysis

Citation Formats

Warren, Glen A., Smith, Leon E., Aalseth, Craig E., Ellis, J. E., Valsan, Andrei B., and Mengesha, Wondwosen. Generalized Multicoincidence Analysis Methods. United States: N. p., 2006. Web. doi:10.1109/TNS.2006.869840.
Warren, Glen A., Smith, Leon E., Aalseth, Craig E., Ellis, J. E., Valsan, Andrei B., & Mengesha, Wondwosen. Generalized Multicoincidence Analysis Methods. United States. doi:10.1109/TNS.2006.869840.
Warren, Glen A., Smith, Leon E., Aalseth, Craig E., Ellis, J. E., Valsan, Andrei B., and Mengesha, Wondwosen. Wed . "Generalized Multicoincidence Analysis Methods". United States. doi:10.1109/TNS.2006.869840.
@article{osti_881928,
title = {Generalized Multicoincidence Analysis Methods},
author = {Warren, Glen A. and Smith, Leon E. and Aalseth, Craig E. and Ellis, J. E. and Valsan, Andrei B. and Mengesha, Wondwosen},
abstractNote = {The ability to conduct automated trace radionuclide analysis at or near the sample collection point would provide a valuable tool for emergency response, environmental monitoring, and verification of treaties and agreements. Pacific Northwest National Laboratory is developing systems for this purpose based on dual gamma-ray spectrometers, e.g. NaI(TI) or HPGe, combined with thin organic scintillator sensors to detect light charged particles. Translating the coincident signatures recorded by these systems, which include beta-gamma, gamma-gamma and beta-gamma-gamma, into the concentration of detectable radionuclides in the sample requires generalized multicoincidence analysis tools. The development and validation of the Coincidence Lookup Library, which currently contains the probabilities of single and coincidence signatures from more than 420 isotopes, is described. Also discussed is a method to calculate the probability of observing a coincidence signature which incorporates true coincidence summing effects. These effects are particularly important for high-geometric-efficiency detection systems. Finally, a process for verifying the integrated analysis software package is demonstrated using GEANT 4 simulations of the prototype detector systems.},
doi = {10.1109/TNS.2006.869840},
journal = {IEEE Transactions on Nuclear Science, 53(1 PT 2):351-355},
number = 1 PT 2,
volume = 53,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}