Abstract:
A radiological image detection apparatus includes an imaging unit, a storage unit, a correction data generating unit, a correction unit, a disturbance detection unit, and a determination unit. The imaging unit acquires radiological image data. The storage unit stores correction data for correcting the radiological image data. The correction data generating unit generates new correction data based on dark image data and updates the correction data stored in the storage unit. The correction unit performs a correction process for the radiological image data using the correction data. The disturbance detection unit detects a disturbance acting when the imaging unit acquires the dark image data. The determination unit determines whether the updating of the correction data stored in the storage unit is permitted, or whether the acquisition of the dark image data is permitted, based on the detection result of the disturbance detection unit.
Abstract:
An x-ray image detector monitors the intensity of incident x-rays to detect an end of radiation from an x-ray source when the x-ray intensity decreases to a threshold level or less. The x-ray intensity gets down to zero with a variable time lag from the start of decreasing, called radiation wave tail. Depending on the gradient of declivity in time curve of the decreasing x-ray intensity, calculated at the time when the end of radiation is detected, the x-ray image detector decides a delay time from the end-of-radiation detection time to a reading start time to start reading signal charges from the image detector. Thus, the reading start time may be adjusted to the point when the x-ray intensity gets down to zero, which will improve S/N ratio and prevent shading artifacts.
Abstract:
A flat panel detector has an imaging area, in which pixels are arrayed in a matrix and signal lines for reading out electric signals from the pixels are provided, to detect an image of a subject from x-rays which are incident on the imaging area after penetrating the subject. Detective elements are arranged in the imaging area, to output electric signals corresponding to incident x-rays. Based on previously stored sensitivity data on the detective elements, high-sensitivity elements are selected from among the detective elements. The start of radiation and the end of radiation of x-rays toward the imaging area are detected by monitoring the electric signals from the selected high-sensitivity elements, to control operation of the imaging device on the basis of the detected start and end of radiation.
Abstract:
A flat panel detector has an imaging area, in which pixels are arrayed in a matrix and signal lines for reading out electric signals from the pixels are provided, to detect an image of a subject from x-rays which are incident on the imaging area after penetrating the subject. Detective elements are arranged in the imaging area, to output electric signals corresponding to incident x-rays. Based on previously stored sensitivity data on the detective elements, high-sensitivity elements are selected from among the detective elements. The start of radiation and the end of radiation of x-rays toward the imaging area are detected by monitoring the electric signals from the selected high-sensitivity elements, to control operation of the imaging device on the basis of the detected start and end of radiation.
Abstract:
A linerless label including a support, a release layer over one surface of the support, and an adhesive layer over another surface of the support, wherein when the linerless label is cut with an apparatus including a mechanism in which an upper blade of cutter blades is immobilized and a lower blade of the cutter blades is configured to move upward, in a manner that the lower blade is inserted into the linerless label from a side of the linerless label at which the adhesive layer is provided, a cutter load voltage during a cutter operation performed after the linerless label is cut five thousand times repeatedly has a difference of less than or equal to 2.0 V from the cutter load voltage during cutting of a label support, which is the linerless label before treated to have adhesiveness.
Abstract:
A radiological image detection apparatus includes an imaging unit, a storage unit, a correction data generating unit, a correction unit, a disturbance detection unit, and a determination unit. The imaging unit acquires radiological image data. The storage unit stores correction data for correcting the radiological image data. The correction data generating unit generates new correction data based on dark image data and updates the correction data stored in the storage unit. The correction unit performs a correction process for the radiological image data using the correction data. The disturbance detection unit detects a disturbance acting when the imaging unit acquires the dark image data. The determination unit determines whether the updating of the correction data stored in the storage unit is permitted, or whether the acquisition of the dark image data is permitted, based on the detection result of the disturbance detection unit.
Abstract:
A linerless label including a support, a release layer over one surface of the support, and an adhesive layer over another surface of the support, wherein when the linerless label is cut with an apparatus including a mechanism in which an upper blade of cutter blades is immobilized and a lower blade of the cutter blades is configured to move upward, in a manner that the lower blade is inserted into the linerless label from a side of the linerless label at which the adhesive layer is provided, a cutter load voltage during a cutter operation performed after the linerless label is cut five thousand times repeatedly has a difference of less than or equal to 2.0 V from the cutter load voltage during cutting of a label support, which is the linerless label before treated to have adhesiveness.
Abstract:
An x-ray image detector monitors the intensity of incident x-rays to detect an end of radiation from an x-ray source when the x-ray intensity decreases to a threshold level or less. The x-ray intensity gets down to zero with a variable time lag from the start of decreasing, called radiation wave tail. Depending on the gradient of declivity in time curve of the decreasing x-ray intensity, calculated at the time when the end of radiation is detected, the x-ray image detector decides a delay time from the end-of-radiation detection time to a reading start time to start reading signal charges from the image detector. Thus, the reading start time may be adjusted to the point when the x-ray intensity gets down to zero, which will improve S/N ratio and prevent shading artifacts.