The aim of the presented paper is to examine the temperature drift and its unfolding for an environmental monitor equipped with a LaBr(Ce) detector. It is known that temperature could influence energy, shape, and efficiency calibration. Consequently, when ambient temperature changes, the full energy absorption peak moves in the resulting spectrum. Research consists of experimental and analytical parts. During research in the climatic chamber, the dependence on temperature of energy, shape, and efficiency calibration was completed. The numerical method allows generating gamma spectra for theoretical so-called binary temperature variation.

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http://dx.doi.org/10.1016/j.apradiso.2024.111210DOI Listing

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