Radiation image detector

A radiation image detector, comprising:

• (a) a radiation image recording medium, including:
• (1) a charge generating section for generating charges by receiving radiation carrying a radiation image;
• (2) multitudes of charge detecting elements disposed two-dimensionally in orthogonal directions, each having a storage section for storing the charge generated in the charge generating section, and a switching element for reading out the charge signal stored in the storage section;
• (3) multitudes of charge signal lines for receiving the charge signals flowing out from the storage sections, each of the charge signal lines being installed in parallel with each column of the charge detecting elements disposed in either direction of the orthogonal directions;
• (4) multitudes of gate control signal lines for receiving a gate control signal for controlling the switching elements ON and OFF, each of the gate control signal lines being installed in parallel with each row of the charge detecting elements disposed in the other direction of the orthogonal directions;
• and
• (b) a detecting section for detecting the charge signals flowed out to the charge signal lines of the radiation image recording medium,
• wherein:
• the radiation image recording medium further includes multitudes of dummy signal lines, each being installed adjacent to each of the corresponding charge signal lines in parallel;
• and
• the detecting section includes a subtracting means for subtracting each of the dummy signals flowed out to each of the dummy signal lines installed adjacent to each of the corresponding charge signal lines from each of the charge signals flowed out to each of the charge signal lines when the gate control signal is flowed through the gate control signal lines.