Study of scintillation properties and performance of CsI(Tl) detectors over time

Summary, in English

This work presents a systematic study of the properties (Light Output Non-Uniformity (LONU) and energy resolution) of two CsI(Tl) scintillation units over a span of almost three years, under adverse conditions of humidity and temperature. These two crystals are part of the CALIFA detector, a highly segmented calorimeter and spectrometer for γ rays and light-charged particles, that is placed surrounding the reaction target at Cave C, the experimental cave of the R³B (Reactions with Radioactive Relativistic Beams) collaboration at the GSI-FAIR facilities in Darmstadt, Germany. The findings obtained after the experiment indicate that there was no significant impact on the performance in terms of resolution and LONU. This suggests that the employed wrapping for light collection effectively serves as an excellent barrier against humidity. As a result, the crystal is preserved in a far better condition than initially anticipated.

• Author: G. García-Jiménez; P. Cabanelas; D. González-Caamaño; H. Alvarez-Pol; M. A. Vicente-Pardal; J. Benlliure; J. Cederkäll; D. Cortina-Gil; M. Feijoo-Fontán; A. Graña-González; J. L. Rodríguez-Sánchez
• Department/s: Department of Physics; Lund University
• Publishing year: 2024-02
• Language: English
• Publication/Series: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• Volume: 1059
• Links: http://dx.doi.org/10.1016/j.nima.2023.169003
• Document type: Journal article
• Publisher: Elsevier
• Topic: Subatomic Physics; Accelerator Physics and Instrumentation
• Keywords: Calorimeters; Degradation; Inorganic crystals; Scintillation detectors
• Status: Published
• ISBN/ISSN/Other: ISSN: 0168-9002