Evaluating the influence of experimental conditions on the photon energy response of Al2O3:C optically stimulated luminescence detectors

► The photon energy responses of Al2O3:C OSLDs varied with experimental conditions. ► The relative response to low energy photons is affected by the ionization density. ► Blocking the UV emission reduces the dependence on experimental conditions. ► The relative response does not depend on the stimulation approach (CW-OSL or POSL).