Radiation image acquisition device
First Claim
1. An apparatus for capturing a radiation image, the apparatus comprising:
- a radiation source configured to emit radiation;
a wavelength converter having an entrance plane, wherein the wavelength converter is configured to receive the radiation emitted from the radiation source through the entrance plane after the emitted radiation has been transmitted by an object, to convert the received radiation to scintillation light, and to output the scintillation light from the entrance plane;
a first optical system including at least one lens, the first optical system being configured to focus on the entrance plane and to image the output scintillation light, thereby generating a first radiation image of the object;
a first image sensor configured to capture the first radiation image;
a second optical system including at least one lens, the second optical system being configured to focus on an opposite plane that is opposite to the entrance plane in the wavelength converter and to image scintillation light output from the opposite plane, thereby generating a second radiation image of the object; and
a second image sensor configured to capture the second radiation image.
1 Assignment
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Accused Products
Abstract
A radiation image acquisition device includes: a radiation source which emits radiation; a wavelength conversion member which generates scintillation light according to incidence of the radiation emitted from the radiation source and transmitted by an object; first imaging means which condenses and images the scintillation light emitted from an entrance surface for the radiation in the wavelength conversion member; and second imaging means which condenses and images the scintillation light emitted from a surface opposite to the entrance surface in the wavelength conversion member, wherein one of the first imaging means and the second imaging means condenses the scintillation light emitted from the entrance surface or the opposite surface in a direction of a normal thereto, and wherein the other condenses the scintillation light emitted from the entrance surface or the opposite surface in a direction inclined with respect to a direction of a normal thereto.
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Citations
16 Claims
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1. An apparatus for capturing a radiation image, the apparatus comprising:
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a radiation source configured to emit radiation; a wavelength converter having an entrance plane, wherein the wavelength converter is configured to receive the radiation emitted from the radiation source through the entrance plane after the emitted radiation has been transmitted by an object, to convert the received radiation to scintillation light, and to output the scintillation light from the entrance plane; a first optical system including at least one lens, the first optical system being configured to focus on the entrance plane and to image the output scintillation light, thereby generating a first radiation image of the object; a first image sensor configured to capture the first radiation image; a second optical system including at least one lens, the second optical system being configured to focus on an opposite plane that is opposite to the entrance plane in the wavelength converter and to image scintillation light output from the opposite plane, thereby generating a second radiation image of the object; and a second image sensor configured to capture the second radiation image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for capturing a radiation image, the method comprising:
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emitting radiation from a radiation source; converting the radiation emitted from the radiation source to scintillation light after the emitted radiation has been transmitted by an object, wherein the converting is performed using a wavelength converter having an entrance plane; outputting the scintillation light from the entrance plane; imaging the output scintillation light, thereby generating a first radiation image of the object, using a first optical system that is focused on the entrance plane; capturing the first radiation image; outputting scintillation light from an opposite plane that is opposite to the entrance plane in the wavelength converter; imaging the output scintillation light from the opposite plane, thereby generating a second radiation image of the object, using a second optical system that is focused on the opposite plane; and capturing the second radiation image. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification