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Scintillation response to gamma-rays measured at wide temperature range for Tl doped CsI with SiPM readout
Natl Ctr Nucl Res, Soltana 7, PL-05400 Otwock, Poland..
Natl Ctr Nucl Res, Soltana 7, PL-05400 Otwock, Poland..
Natl Ctr Nucl Res, Soltana 7, PL-05400 Otwock, Poland..
Natl Ctr Nucl Res, Soltana 7, PL-05400 Otwock, Poland..
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2019 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 916, p. 32-36Article in journal (Refereed) Published
Abstract [en]

A custom design cryostat was constructed to study the temperature dependence of relative light yield and non-proportionality trends of scintillators between -182 degrees C and +152 degrees C. CsI:Tl crystal response to gamma-rays and X-rays was investigated between 14 keV and 662 keV. Scintillation light was detected by a SiPM device, which was installed on a copper frame separated from the crystal and the cooling rod to enable operating the device at room temperature. The scintillation efficiency of CsI:Tl is peaked at about room temperature. The light yield of CsI:Tl at temperature close to liquid nitrogen boiling point is reduced by a factor of 15 in comparison to room temperature conditions. The non-proportionality of CsI:Tl scintillation response is high at low temperatures and is getting more proportional with increasing temperature.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2019. Vol. 916, p. 32-36
Keywords [en]
CsI:Tl, Temperature dependence, Photoelectron yield, Non-proportionality
National Category
Ceramics
Identifiers
URN: urn:nbn:se:kth:diva-242173DOI: 10.1016/j.nima.2018.10.149ISI: 000455016800004Scopus ID: 2-s2.0-85057886456OAI: oai:DiVA.org:kth-242173DiVA, id: diva2:1283217
Note

QC 20190128

Available from: 2019-01-28 Created: 2019-01-28 Last updated: 2019-01-28Bibliographically approved

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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Ceramics

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