The gamma ray response of alanine film dosimeters at low temperatures

► Alanine film dosimeters EPR response was studied at low irradiation temperatures. ► Changes in EPR signal with irradiation and measurement temperature were investigated. ► The temperature coefficient of the dosimeter obtained was 0.26%±0.02%. ► The EPR signal induced by irradiation is produced by two radical species. ► Radicals produced at low temperature irradiation are the same as those produced at room temperature but in different concentrations.