Negative temporal cross covariance in SrI2:Eu

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

doi:10.1117/12.2214406

27 August 2015 Negative temporal cross covariance in SrI₂:Eu

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

Proceedings Volume 9595, Radiation Detectors: Systems and Applications XVI; 959504 (2015) https://doi.org/10.1117/12.2214406
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

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.

Citation Download Citation

Vaibhav Bora, David Fastje, Harrison H. Barrett, Eric Clarkson, Lars Furenlid, Kanai S. Shah, and Urmila Shirwadkar "Negative temporal cross covariance in SrI₂:Eu", Proc. SPIE 9595, Radiation Detectors: Systems and Applications XVI, 959504 (27 August 2015); https://doi.org/10.1117/12.2214406

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