摘要:
An imaging apparatus 100 includes a detector 104 having a plurality of pixels arranged in a matrix and performing an imaging operation of outputting image data according to the radiation or light emitted in a predetermined irradiation field; and a controller unit 106, and performs a first imaging operation for outputting image data according to the radiation in a narrower irradiation field A corresponding to part of pixels and a second imaging operation for outputting image data according to the radiation in a wider irradiation field B, under controlling the detector to perform an accumulation operation during the second imaging operation so that a step of image is a preliminarily set tolerable quantity.
摘要:
An imaging apparatus includes a detector, having a plurality of pixels arranged in a matrix, for performing first and second radiography operations, a bias light source, and a control unit that controls the operation of the detector and the bias light source. In the first radiography operation, image data corresponding to radiation in a first radiation field corresponding to some of the pixels is output. In the second radiography operation, image data corresponding to radiation in a second radiation field larger than the first radiation field is output. In accordance with a change from the first radiation field to the second radiation field, the operation of the bias light source is controlled so that the irradiation with the bias light is performed during a period between the first and second radiography operations at a bias-light integral dose determined based on radiation integral dose information in the first radiography operation.
摘要:
An imaging operation includes a first imaging operation for outputting image data according to irradiation to the detector with radiation or light in an irradiation field A corresponding to a part of the plurality of pixels, and a second imaging operation for outputting image data according to irradiation to the detector 104 with radiation or light in an irradiation field B wider than the irradiation field A, wherein, responsive to a changing from irradiation in the irradiation field A to irradiation in the irradiation field B, an operation of the detector is controlled so that the detector performs an initializing operation for initializing conversion elements during a period between the first and second imaging operations.
摘要:
An imaging apparatus includes a detector, having a plurality of pixels arranged in a matrix, for performing first and second radiography operations, a bias light source, and a control unit that controls the operation of the detector and the bias light source. In the first radiography operation, image data corresponding to radiation in a first radiation field corresponding to some of the pixels is output. In the second radiography operation, image data corresponding to radiation in a second radiation field larger than the first radiation field is output. In accordance with a change from the first radiation field to the second radiation field, the operation of the bias light source is controlled so that the irradiation with the bias light is performed during a period between the first and second radiography operations at a bias-light integral dose determined based on radiation integral dose information in the first radiography operation.
摘要:
An imaging operation includes a first imaging operation for outputting image data according to irradiation to the detector with radiation or light in an irradiation field A corresponding to a part of the plurality of pixels, and a second imaging operation for outputting image data according to irradiation to the detector 104 with radiation or light in an irradiation field B wider than the irradiation field A, wherein, responsive to a changing from irradiation in the irradiation field A to irradiation in the irradiation field B, an operation of the detector is controlled so that the detector performs an initializing operation for initializing conversion elements during a period between the first and second imaging operations.
摘要:
An apparatus includes a detecting unit having pixels that converts radiation or light to electric signals; a drive circuit that drives the detecting unit; a read circuit that outputs the electric signals as image signals; a power supply unit that supplies voltages to the detecting unit, the drive circuit, and the read circuit; and a control unit that controls at least the drive circuit and the power supply unit. The control unit performs a first process of stopping the voltage supply operation to the detecting unit, with the voltage supply operations to the drive circuit and the read circuit maintained; a second process of driving the detecting unit; and a third process of stopping the voltage supply operations to the drive circuit and the read circuit.
摘要:
An imaging system includes a detector (104) having a first area where irradiation occurs in a radiation field (A) and a second area other than the first area where irradiation occurs in a radiation field (B) and configured to output image data, and an image processing unit (601) that performs image processing on the image data. The image processing unit (601) includes a storage unit (602) that stores dark output information, a measurement unit (607) that measures the integral dose of the radiation or light applied to a pixel in the first area and the integral dose of the radiation or light applied to a pixel in the second area, and a correction unit (610) that corrects the image data, based on the dark output information obtained from the storage unit (602) and the integral doses measured by the measurement unit (607), when changing of the radiation field has occurred.
摘要:
An apparatus includes a detecting unit having pixels that converts radiation or light to electric signals; a drive circuit that drives the detecting unit; a read circuit that outputs the electric signals as image signals; a power supply unit that supplies voltages to the detecting unit, the drive circuit, and the read circuit; and a control unit that controls at least the drive circuit and the power supply unit. The control unit performs a first process of stopping the voltage supply operation to the detecting unit, with the voltage supply operations to the drive circuit and the read circuit maintained; a second process of driving the detecting unit; and a third process of stopping the voltage supply operations to the drive circuit and the read circuit.
摘要:
A radiation detection apparatus includes a scintillator panel having a scintillator layer which converts radiation into light and a scintillator protective layer which protects the scintillator layer, and a sensor panel having a sensor array in which a plurality of photoelectric converters which detect light from the scintillator layer are arranged and a sensor protective layer which protects the sensor array. The scintillator panel is bonded to the sensor panel by making the scintillator layer adhere to the sensor protective layer by using the scintillator protective layer as an adhesive material. A principal component of the scintillator protective layer is the same as a principal component of the sensor protective layer.
摘要:
A scintillator includes a scintillator layer which converts radiation into light, the scintillator layer having a first end forming part of a contour of the scintillator layer and a second end forming another part of the contour, wherein the first end and the second end are located on opposite sides of the scintillator layer when viewed from the center of the scintillator layer, wherein an efficiency of conversion from radiation into light decreases from the first end to the second end.