PROBLEM TO BE SOLVED: To provide a radiation imaging device capable of obtaining a more appropriate dispersion effect for external impact load.SOLUTION: A radiation imaging device 100 comprises: a radiation sensor panel 140 converting a radiation to an image signal a casing enclosing the radiation sensor panel 140 a support section 150 supporting the radiation sensor panel 140 with respect to the casing and a damper member 160 arranged between the radiation sensor panel 140 and the casing on an opposite side to the support section 150 of the radiation sensor panel 140 and configured so that a distribution of pressure generated in the radiation sensor panel 140 by supporting the radiation sensor panel 140 by the support section 150 corresponds to a distribution of performance for damping impact from outside of the casing.
