Algorithm implementation for a prototype time-encoded signature detector

Theresa M. Mercier, Robert C. Runkle, Daniel L. Stephens, Brian J. Hyronimus, Scott J. Morris, Allen Seifert, Cory R. Wyatt

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The authors constructed a prototype Time-Encoded Signature (TES) system, complete with automated detection algorithms that can be used to detect point-like gamma-ray sources in search applications where detectors observe large variability in background count rates beyond statistical (Poisson) noise. The person-carried system consists of two cesium iodide scintillators placed on opposite sides of a lead shield. This geometry mitigates systematic background variation and induces a unique signature upon encountering point-like sources. This manuscript focuses on the development of detection algorithms that identify point-source signatures while remaining computationally simple. The latter constraint derives from the instrument's mobile (and thus low power) operation. The authors evaluated algorithms using both simulated and field data. The results of this analysis demonstrate the capability to detect sources at a wide range of source-detector distances using computationally simple algorithms.

Original languageEnglish (US)
Pages (from-to)2653-2659
Number of pages7
JournalIEEE Transactions on Nuclear Science
Issue number6
StatePublished - Dec 2007
Externally publishedYes


  • Detection statistic
  • Gamma ray detection
  • Hand-held detector
  • Matched filter
  • Point source detection
  • Standoff distance

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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