A radiation image generating system, comprising: a plurality of radiation image detecting apparatuses, each including at least a scintillator layer having a scintillator to emit light according to an entered radiation, a photoelectric conversion layer to detect the light emitted by the scintillator to convert the detected light into electric energy, and a switching element layer having switching elements to accumulate and output the electric energy obtained by the photoelectric conversion layer, the radiation image detecting apparatuses obtaining radiation image information of a subject; and a radiation image generating operation control apparatus including a selection section to select a desired radiation image detecting apparatus among the plurality of radiation image detecting apparatuses, wherein the radiation image generating operation control apparatus includes a display section to display scintillator information of the scintillator used in each of the plurality of radiation image detecting apparatuses.