RADIOGRAPHIC IMAGE DETECTING DEVICE, RADIOGRAPHIC IMAGE DETECTING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM

• US 20130083897A1
• Filed: 08/30/2012
• Published: 04/04/2013
• Est. Priority Date: 09/30/2011
• Status: Abandoned Application

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: OHTA, Yasunori, NISHINO, Naoyuki
• Application Number:
  US13/600,012
• Publication Number:
  US 20130083897A1
• Time in Patent Office: Days
• US Class Current: 378/91
• CPC Class Codes: A61B 6/4233 using matrix detectors
• CPC Class Codes: A61B 6/4283 characterised by a detector unit being housed in a cassette
• CPC Class Codes: A61B 6/548 Remote control of the apparatus or devices
• CPC Class Codes: G03B 42/02 using X-rays

Abstract

A radiographic image detecting device includes: a radiation detecting panel in which plural radiation detecting elements that generate electric charges in response to a dose of irradiated radiation are two-dimensionally arrayed; plural image acquiring units that read out the electric charges stored in the radiation detecting elements belonging to each of plural blocks into which the plural radiation detecting elements are divided to thereby acquire image data; a power source that supplies power for driving to the image acquiring units corresponding to each of the plural blocks; and a controller that controls in such a way as to cut off the supply of power from the power source to the image acquiring units corresponding to the blocks in accordance with a predetermined condition.

Claims

1. A radiographic image detecting device comprising:

a radiation detecting panel in which plural radiation detecting elements that generate electric charges in response to a dose of irradiated radiation are two-dimensionally arrayed;

plural image acquiring units that read out the electric charges stored in the radiation detecting elements, each of the image acquiring units belonging to one of plural blocks into which the plural radiation detecting elements are divided, to thereby acquire image data;

a power source that supplies driving power to the image acquiring units corresponding to each of the plural blocks; and

a controller that controls in such a way as to cut off the supply of power from the power source to the image acquiring units corresponding to the blocks in accordance with a predetermined condition.

2. The radiographic image detecting device according to claim 1, further comprising a radiation detecting unit that detects a region of the radiation detecting panel to which the radiation is not irradiated, wherein the controller takes as a condition the irradiation not being detected by the radiation detecting unit and controls in such a way as to cut off the supply of power from the power source to the image acquiring unit belonging to the block corresponding to the region in which the irradiation is not detected.

3. The radiographic image detecting device according to claim 1, further comprising a battery remaining capacity detecting unit that detects the battery remaining capacity of a battery installed in the radiographic image detecting device, wherein the controller takes as a condition the battery remaining capacity detected by the battery remaining capacity detecting unit, decreases a target range of the plural image acquiring units to which the power supply is cut off as the battery remaining capacity becomes higher and enlarges the target range of the plural image acquiring units to which the power supply is cut off as the battery remaining capacity becomes lower.

4. The radiographic image detecting device according to claim 1, wherein the controller enlarges the region of the blocks that detect the irradiated radiation by decreasing the target range of the plural image acquiring units to which the power supply is cut off and reduces the region of the blocks that detect the irradiated radiation by enlarging the target range of the plural image acquiring units to which the power supply is cut off.

5. The radiographic image detecting device according to claim 2, wherein the controller enlarges the region of the blocks that detect the irradiated radiation by decreasing the target range of the plural image acquiring units to which the power supply is cut off and reduces the region of the blocks that detect the irradiated radiation by enlarging the target range of the plural image acquiring units to which the power supply is cut off.

6. The radiographic image detecting device according to claim 3, wherein the controller enlarges the region of the blocks that detect the irradiated radiation by decreasing the target range of the plural image acquiring units to which the power supply is cut off and reduces the region of the blocks that detect the irradiated radiation by enlarging the target range of the plural image acquiring units to which the power supply is cut off.

7. The radiographic image detecting device according to claim 1, further comprising a presenting unit that presents the region of the blocks to which the supply of the power has been cut off.

8. The radiographic image detecting device according to claim 2, further comprising a presenting unit that presents the region of the blocks to which the supply of the power has been cut off.

9. The radiographic image detecting device according to claim 3, further comprising a presenting unit that presents the region of the blocks to which the supply of the power has been cut off.

10. The radiographic image detecting device according to claim 1, further comprising

a comparing unit that compares the region of the blocks corresponding to the image acquiring units to which the power source has been supplied and a region required for imaging an imaging target site of a radiographic image and

a notifying unit that issues a predetermined notification in a case where the region of the blocks is smaller than the region required for imaging.

11. The radiographic image detecting device according to claim 2, further comprising

a comparing unit that compares the region of the blocks corresponding to the image acquiring units to which the power source has been supplied and a region required for imaging an imaging target site of a radiographic image and

a notifying unit that issues a predetermined notification in a case where the region of the blocks is smaller than the region required for imaging.

12. The radiographic image detecting device according to claim 3, further comprising

a comparing unit that compares the region of the blocks corresponding to the image acquiring units to which the power source has been supplied and a region required for imaging an imaging target site of a radiographic image and

a notifying unit that issues a predetermined notification in a case where the region of the blocks is smaller than the region required for imaging.

13. The radiographic image detecting device according to claim 1, wherein

the radiation detecting elements have semiconductor films that receive the irradiation and generate electric charges,

the electric charges are stored in storage capacitors disposed in each of the plural pixels, and

the electric charges that have been stored in the storage capacitors are read out by the switch elements.

14. The radiographic image detecting device according to claim 2, wherein

the radiation detecting elements have semiconductor films that receive the irradiation and generate electric charges,

the electric charges are stored in storage capacitors disposed in each of the plural pixels, and

the electric charges that have been stored in the storage capacitors are read out by the switch elements.

15. The radiographic image detecting device according to claim 3, wherein

the radiation detecting elements have semiconductor films that receive the irradiation and generate electric charges,

the electric charges are stored in storage capacitors disposed in each of the plural pixels, and

the electric charges that have been stored in the storage capacitors are read out by the switch elements.

16. The radiographic image detecting device according to claim 1, wherein the radiation detecting elements have a scintillator that converts the irradiated radiation into visible light, and after the visible light into which the irradiated radiation has been converted is converted into electric charges in a semiconductor layer, electric signals corresponding to the electric charges are outputted by the switch elements.

17. The radiographic image detecting device according to claim 2, wherein the radiation detecting elements have a scintillator that converts the irradiated radiation into visible light, and after the visible light into which the irradiated radiation has been converted is converted into electric charges in a semiconductor layer, electric signals corresponding to the electric charges are outputted by the switch elements.

18. The radiographic image detecting device according to claim 3, wherein the radiation detecting elements have a scintillator that converts the irradiated radiation into visible light, and after the visible light into which the irradiated radiation has been converted is converted into electric charges in a semiconductor layer, electric signals corresponding to the electric charges are outputted by the switch elements.

19. A radiographic image detecting method comprising:

dividing, into plural blocks, plural radiation detecting elements that are two-dimensionally arrayed in a radiation detecting panel and generate electric charges in response to a dose of irradiated radiation and reading out, with image acquiring units, the electric charges stored in the radiation detecting elements belonging to each of the plural blocks to thereby acquire image data;

supplying power for driving to the image acquiring units corresponding to each of the plural blocks;

detecting a region of the radiation detecting panel to which the radiation is not irradiated; and

controlling in such a way as to cut off the supply of power from the power source to the image acquiring units belonging to the blocks corresponding to the region in which irradiation is not detected.

20. A non-transitory computer-readable storage medium that stores a program that causes a radiographic image detecting device to execute processing, the radiographic image detecting device including a radiation detecting panel in which plural radiation detecting elements that generate electric charges in response to a dose of irradiated radiation are two-dimensionally arrayed, plural image acquiring units that read out the electric charges stored in the radiation detecting elements belonging to each of plural blocks into which the plural radiation detecting elements are divided to thereby acquire image data, and a power source that supplies power for driving to the image acquiring units corresponding to each of the plural blocks, the processing comprising:

detecting whether or not the radiation is irradiated to the radiation detecting panel, and

controlling in such a way as to cut off the supply of power from the power source with respect to the blocks corresponding to a region in which irradiation is not detected by the radiation detecting unit.