Patent ID: 8563939

Claim:
A radiation detecting apparatus comprising: a sensor panel for converting radiation or light into an electric charge; a casing holding the sensor panel; an acceleration detecting unit for detecting an acceleration relating to a movement of the radiation detecting apparatus, and for transmitting a signal based on a value of the acceleration; a determining unit for determining, based on the signal transmitted from the acceleration detecting unit, as to whether the radiation detecting apparatus is in a normal state, an excessively accelerated state or a free falling state; and a buffer unit, arranged outside of the casing, for operating to absorb a shock exerted on the radiation detecting apparatus, responsive to determination by the determining unit such that the radiation detecting apparatus is in the excessively accelerated state or the free falling state, wherein, when the radiation detecting apparatus is connected to another device, the determining unit determines such that the radiation detecting apparatus is in the normal state, and, when the radiation detecting apparatus is not connected to another device, the determining unit determines as to whether or not the radiation detecting apparatus is in the excessively accelerated state or the free falling state.