Radiation image capturing system
First Claim
1. A radiation image capturing system comprising:
- an image capturing unit including a radiation source for emitting a radiation;
a cassette including a radiation conversion panel for detecting the radiation which has been emitted from said radiation source and which has passed through a subject, and converting the detected radiation into radiation image information;
a position detecting unit for detecting respective positions of said radiation source and said radiation conversion panel; and
a determining unit for determining whether said radiation source and said radiation conversion panel are placed in head-on facing relation to each other based on the positions of said radiation source and said radiation conversion panel which are detected by said position detecting unit;
wherein said radiation source and said radiation conversion panel are separate from each other and movable with respect to each other,wherein said position detecting unit comprises a detector for detecting the respective positions of said radiation source and said radiation conversion panel in a horizontal plane, andwherein the detector comprises a first horizontal sensor for detecting a horizontal position of the radiation detecting cassette, a first vertical sensor for detecting a vertical position of the radiation detecting cassette, a second horizontal sensor for detecting a horizontal position of the image capturing unit, and a second vertical sensor for detecting a vertical position of the image capturing unit.
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Accused Products
Abstract
A radiation image capturing system detects the position of a radiation detecting cassette disposed below a patient and the position of a radiation source for emitting a radiation, based on the differences between the propagation times of radio waves emitted from an antenna device to an image capturing apparatus and the radiation detecting cassette. Based on the detected positions, the relative positions of the image capturing apparatus and the radiation detecting cassette are calculated, and then compared with each other by a position determining unit to judge how the image capturing apparatus is positioned with respect to the radiation detecting cassette. If the image capturing apparatus is not positioned in head-on facing relation to the radiation detecting cassette, then a warning is issued, and an actuating mechanism moves the image capturing apparatus to an appropriate position.
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Citations
11 Claims
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1. A radiation image capturing system comprising:
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an image capturing unit including a radiation source for emitting a radiation; a cassette including a radiation conversion panel for detecting the radiation which has been emitted from said radiation source and which has passed through a subject, and converting the detected radiation into radiation image information; a position detecting unit for detecting respective positions of said radiation source and said radiation conversion panel; and a determining unit for determining whether said radiation source and said radiation conversion panel are placed in head-on facing relation to each other based on the positions of said radiation source and said radiation conversion panel which are detected by said position detecting unit; wherein said radiation source and said radiation conversion panel are separate from each other and movable with respect to each other, wherein said position detecting unit comprises a detector for detecting the respective positions of said radiation source and said radiation conversion panel in a horizontal plane, and wherein the detector comprises a first horizontal sensor for detecting a horizontal position of the radiation detecting cassette, a first vertical sensor for detecting a vertical position of the radiation detecting cassette, a second horizontal sensor for detecting a horizontal position of the image capturing unit, and a second vertical sensor for detecting a vertical position of the image capturing unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification