Validation of a Bayesian-based isotope identification algorithm

C. J. Sullivan, J. Stinnett

Research output: Contribution to journalArticlepeer-review


Handheld radio-isotope identifiers (RIIDs) are widely used in Homeland Security and other nuclear safety applications. However, most commercially available devices have serious problems in their ability to correctly identify isotopes. It has been reported that this flaw is largely due to the overly simplistic identification algorithms on-board the RIIDs. This paper reports on the experimental validation of a new isotope identification algorithm using a Bayesian statistics approach to identify the source while allowing for calibration drift and unknown shielding. We present here results on further testing of this algorithm and a study on the observed variation in the gamma peak energies and areas from a wavelet-based peak identification algorithm.

Original languageEnglish (US)
Pages (from-to)298-305
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
StatePublished - Jun 1 2015


  • Algorithms
  • Isotope identification
  • Low resolution gamma-ray spectra
  • Wavelets

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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