Portable radiographic imaging device and radiographic imaging system

A radiographic imaging system comprising:

• a portable radiographic imaging device including:
• a radiation detection panel that includes optoelectric conversion elements that convert irradiated radiation into an electrical signal;
• a signal processing substrate that performs predetermined signal processing on the input electrical signal;
• a holding base that is provided between the radiation detection panel and the signal processing substrate and that holds the signal processing substrate;
• a flexible substrate that includes a flexed portion, with one end of the flexible substrate being connected to the radiation detection panel and the other end of the flexible substrate being connected to the signal processing substrate;
• a casing in which the radiation detection panel, the signal processing substrate, the holding base and the flexible substrate are installed;
• and
• a contact avoidance portion that is formed at at least one of the signal processing substrate, the holding base or the casing such that contact of the at least one of the signal processing substrate, the holding base or the casing with the flexible substrate is avoided.
• a radiation generating device that generates radiation;
• and
• an imaging controller that controls the portable radiographic imaging device and the radiation generating device,
• wherein, under control of the imaging controller, radiation is generated by the radiation generating device and the portable radiographic imaging device images the radiation that passes through a subject.