RADIOGRAPHIC IMAGING SYSTEM
First Claim
1. A radiographic imaging system, comprising:
- a radiation generating section for generating and irradiating radiation onto a subject;
a scintillator section for converting the radiation from the subject into light;
an imaging section for performing a photoelectric conversion on the light from the scintillator section and imaging the light as an image of the subject; and
a controlling section for reading imaging signals from the imaging section multiple times with a different length of an exposure time period with respect to the irradiation of a constant dose of radiation by the radiation generating section, and controlling to synthesize image data from the imaging signals read out multiple times into an image.
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Accused Products
Abstract
A response with a wider dynamic range is obtained without a need for irradiating strong radiation onto a subject (human body). A CCD controller 22 allows reading of imaging signals from CCD image sensors 1 to 12, which is performed twice during different time periods, once during a long exposure time period and once during a short exposure time period, with respect to the irradiation of a constant dose of radiation by an X-ray generator 25; and a main controller 26 allows a memory 24 to synthesize image data from the successively twice-read imaging signals into an image with proper timing. As a result, it becomes unnecessary to irradiate strong radiation onto a subject, such as a human body and other substances, as is done conventionally, owing to a radiation dose weak enough not to cause a harmful influence.
15 Citations
17 Claims
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1. A radiographic imaging system, comprising:
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a radiation generating section for generating and irradiating radiation onto a subject; a scintillator section for converting the radiation from the subject into light; an imaging section for performing a photoelectric conversion on the light from the scintillator section and imaging the light as an image of the subject; and a controlling section for reading imaging signals from the imaging section multiple times with a different length of an exposure time period with respect to the irradiation of a constant dose of radiation by the radiation generating section, and controlling to synthesize image data from the imaging signals read out multiple times into an image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification