Scintillation response to gamma-rays measured at wide temperature range for Tl doped CsI with SiPM readout

Autor: Kamil Brylew, S. Gridin, S. Vasyukov, Alberto Gola, W. Czarnacki, Z. Mianowska, A. Gektin, Claudio Piemonte, X. Lu, T. Zawistowski, Lukasz Swiderski, Marek Moszynski, Tomasz Szczesniak, M. Grodzicka-Kobylka, M. R. Mayhugh, T. Sworobowicz, Wlodzimierz Klamra, Alessandro Ferri, Fabio Acerbi, Agnieszka Syntfeld-Kazuch, Richard T. Williams
Rok vydání: 2019
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 916:32-36
ISSN: 0168-9002
DOI: 10.1016/j.nima.2018.10.149
Popis: A custom design cryostat was constructed to study the temperature dependence of relative light yield and non-proportionality trends of scintillators between −182 °C and +152 °C. CsI:Tl crystal response to γ -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.
Databáze: OpenAIRE