Complex OSL signal and a trap independence assumption

Simulations of optically stimulated luminescence process were performed for the model which includes two electron traps and one recombination centre. The fulfillment of the trap independence assumption was tested. The fitting procedure was applied for the simulation outputs in order to check if they can be decomposed into the first-order components. A wide range of trap parameters was applied and it was shown that the trap independence assumption is valid only for some special cases but the simulated OSL curves fit often with high accuracy a sum of first-order components which differ significantly from these used in the model.