| US 7,550,732 B2 | ||
| Radiation image detector | ||
| Akira Yamaguchi, Kanagawa-ken (Japan) | ||
| Assigned to FUJIFILM Corporation, Tokyo (Japan) | ||
| Filed on Sep. 29, 2005, as Appl. No. 11/238,010. | ||
| Claims priority of application No. 2004-287318 (JP), filed on Sep. 30, 2004; and application No. 2004-287319 (JP), filed on Sep. 30, 2004. | ||
| Prior Publication US 2006/0065813 A1, Mar. 30, 2006 | ||
| Int. Cl. H01L 27/146 (2006.01); H01L 27/00 (2006.01) | ||
| U.S. Cl. 250—370.09 [250/208.1] | 10 Claims |
| 1. 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 delay circuits, each being provided for the switching
element of each of the charge detecting elements, for delaying the rise time of the gate control signal for causing each of
the switching elements to be switched to ON; and
the detecting section is constructed to detect the charge signals flowed out to the charge signal lines after the rise time.
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