Luminescent properties of MgO $\cdot$ 2.5Al$_{2}$O$_{3}$ spinel crystals irradiated by 12-MeV electrons

The investigation of the luminescent properties of nonstoichiometric spinel compositions of MgO $\cdot$ 2.5Al$_{2}$O$_{3}$ irradiated in direct and scattered beams of 12 MeV electrons on M-30 microtron are given. The phosphorescence decay kinetics of these compounds that occur after irradiation have been studied. It was found that the kinetics of induced luminescence can be described the Becquerel's hyperbola. The degree parameter of this hyperbola is increased with increasing the dose of radiation. The regularities of the thermoluminescence peak change in the range of 110 – 250$^\circ$C with the dose are investigated. It is concluded that obtained results can be used for clinical and technological dosimetry of pulsed electron beams.