García-Jiménez, GabrielCabanelas Eiras, PabloGonzález-Caamaño, DavidÁlvarez Pol, HéctorVicente-Pardal, M.A.Benlliure Anaya, José FernandoCederkäll, J.Cortina Gil, María DoloresFeijoo Fontán, MartinaGraña González, AntíaRodríguez Sánchez, José Luis2024-02-262024-02-272024-02-262024-02-272024Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 1059, 2024, 1690030168-9002http://hdl.handle.net/10347/32918This 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 rays and light-charged particles, that is placed surrounding the reaction target at Cave C, the experimental cave of the R B (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.engAtribución-NoComercial 4.0 Internacional© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC licensehttp://creativecommons.org/licenses/by-nc/4.0/CalorimetersInorganic crystalsScintillation detectorsDegradationjournal article10.1016/j.nima.2023.169003open access