Self-absorption in SrI2:2%Eu2+ between 78K and 600K

Alekhin, Mikhail S.; Krämer, Karl W.; Dorenbos, Pieter (2013). Self-absorption in SrI2:2%Eu2+ between 78K and 600K. Nuclear instruments & methods in physics research. Section A - accelerators, spectrometers, detectors and associated equipment, 714, pp. 13-16. Amsterdam: North-Holland 10.1016/j.nima.2013.02.025

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Self-absorption of the Eu2+ emission is an important aspect in SrI2:Eu that affects its scintillation performance. To calculate the probability of self-absorption, we measured the light yield and the decay time of 1–15 mm thick SrI2:2%Eu samples at temperatures between 78 K and 600 K. The obtained properties of SrI2:2%Eu crystals were then compared to those of SrI2:5%Eu. The decay times of SrI2:5%Eu crystals were the same or somewhat longer compared to those of twice as thickSrI2:2%Eu crystals. Accordingly, doubling the thickness has the same effect on the probability of self-absorption as doubling the Eu concentration.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Krämer, Karl

Subjects:

500 Science > 530 Physics
500 Science > 540 Chemistry

ISSN:

0168-9002

Publisher:

North-Holland

Language:

English

Submitter:

Karl Krämer

Date Deposited:

16 Dec 2013 16:42

Last Modified:

15 Jan 2015 19:57

Publisher DOI:

10.1016/j.nima.2013.02.025

Uncontrolled Keywords:

Scintillators; Gamma-ray spectroscopy; Self-absorption; Strontium iodide

BORIS DOI:

10.7892/boris.39106

URI:

https://boris.unibe.ch/id/eprint/39106

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