Negative temporal cross covariance in SrI2:Eu

Vaibhav Bora, David Fastje, Harrison H. Barrett, Eric Clarkson, Lars Furenlid, Kanai S. Shah, Urmila Shirwadkar

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Scintillation light is widely believed to be Poisson or super-Poisson. We tested this hypothesis by measuring the temporal correlation between two detectors detecting scintillation light resulting from the same gamma-ray event in SrI2:Eu. Poisson light is expected to yield zero temporal correlations, while super-Poisson light is expected to yield positive, and sub-Poisson light is expected to yield negative temporal correlation. Scintillation light in SrI2:Eu was found to be negatively correlated. Therefore, we conclude that the scintillation light in SrI2:Eu is sub-Poisson.

Original languageEnglish (US)
Title of host publicationRadiation Detectors
Subtitle of host publicationSystems and Applications XVI
EditorsH. Bradford Barber, Gary P. Grim
ISBN (Electronic)9781628417616
StatePublished - 2015
EventRadiation Detectors: Systems and Applications XVI - San Diego, United States
Duration: Aug 12 2015 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherRadiation Detectors: Systems and Applications XVI
Country/TerritoryUnited States
CitySan Diego
Period8/12/15 → …


  • Nonclassical light
  • Scintillators
  • SrI:Eu
  • Sub-Poisson statistics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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