A scintillator is a material which converts incoming ionizing energy into visible light. This conversion process, which is a strongly nonlinear one, can be described by a Reaction-Diffusion-Drift equation we obtain from a model of continua with microstructure endowed with a suitable thermodynamics. For such an equation it can be show the global existence of renormalizable and weak solutions, and the solutions exponential decay estimates can be given; moreover we give also a mathematical definition for the light yield which is a measure of scintillation efficiency.
Existence, Decay Time and Light Yield for a Reaction-Diffusion-Drift Equation in the Continuum Physics of Scintillators / Davi', F.. - STAMPA. - 46:(2021), pp. 125-137. (Intervento presentato al convegno Harnack Inequalities and Nonlinear Operators. INdAM conference to celebrate the 70th birthday of Emmanuele DiBenedetto tenutosi a Cortona nel June 18-24, 2017) [10.1007/978-3-030-73778-8].