A radiography system includes: a radiation source that emits radiation; an imaging stand having a detection panel that generates a radiation image by detecting the radiation; a lifting device on which a subject to be examined is placed; a misalignment amount detection device that detects a relative misalignment amount between the imaging stand and the subject to be examined; and a lifting control device that lifts and lowers the lifting device on the basis of the misalignment amount detected by the misalignment amount detection device.

A radiography system includes: a radiation source that emits radiation; an imaging stand having a detection panel that generates a radiation image by detecting the radiation; a lifting device on which a subject to be examined is placed; a misalignment amount detection device that detects a relative misalignment amount between the imaging stand and the subject to be examined; and a lifting control device that lifts and lowers the lifting device on the basis of the misalignment amount detected by the misalignment amount detection device.

In a preamplifier (amplifier) for the radiation detector, an interconnection layer connected to the bonding pad forms one electrode of a feedback capacitor. Since there is no wiring for connecting the bonding pad and capacitor, a parasitic capacitance caused by the wiring will not be generated. Moreover, the capacitor is arranged below the bonding pad with a conductive layer serving as the other electrode, so that the feedback capacitance of the capacitor is included in the parasitic capacitance between the interconnection layer and the substrate. Compared to the conventional case, an amount of capacitance corresponding to the parasitic capacitance caused by wiring and the feedback capacitance for the capacitor is reduced from the input capacitance. Thus, the input capacitance for the amplifying circuit is reduced.

In a preamplifier (amplifier) for the radiation detector, an interconnection layer connected to the bonding pad forms one electrode of a feedback capacitor. Since there is no wiring for connecting the bonding pad and capacitor, a parasitic capacitance caused by the wiring will not be generated. Moreover, the capacitor is arranged below the bonding pad with a conductive layer serving as the other electrode, so that the feedback capacitance of the capacitor is included in the parasitic capacitance between the interconnection layer and the substrate. Compared to the conventional case, an amount of capacitance corresponding to the parasitic capacitance caused by wiring and the feedback capacitance for the capacitor is reduced from the input capacitance. Thus, the input capacitance for the amplifying circuit is reduced.

A radiographic imaging device includes: a radiation detector including plural pixels, each including a sensor portion and a switching element; a detection unit that detects a radiation irradiation start if an electrical signal caused by charges generated in the sensor portion satisfies a specific irradiation detection condition, and/or if an electrical signal caused by charges generated in a radiation sensor portion that is different from the sensor portion satisfies a specific irradiation detection condition; and a control unit that determines whether or not noise caused by external disturbance has occurred after the detection unit has detected the radiation irradiation start, and if the noise has occurred, that stops a current operation of the radiation detector, and causes the detection unit to perform detection.

A radiographic imaging device includes: a radiation detector including plural pixels, each including a sensor portion and a switching element; a detection unit that detects a radiation irradiation start if an electrical signal caused by charges generated in the sensor portion satisfies a specific irradiation detection condition, and/or if an electrical signal caused by charges generated in a radiation sensor portion that is different from the sensor portion satisfies a specific irradiation detection condition; and a control unit that determines whether or not noise caused by external disturbance has occurred after the detection unit has detected the radiation irradiation start, and if the noise has occurred, that stops a current operation of the radiation detector, and causes the detection unit to perform detection.

A radiation detector includes control and data lines extending respectively in mutually-orthogonal first and second directions, photoelectric conversion parts respectively in regions defined by the control and data lines, noise detecting parts outside a region including the photoelectric conversion parts, a control circuit inputting control signals to first and second thin film transistors located respectively in the photoelectric conversion and noise detecting parts, a signal detection circuit reading image data and noise signals respectively from the photoelectric conversion and noise detecting parts, and an image configuration circuit configuring a radiation image based on the signals that are read. The signals from the photoelectric conversion parts adjacent to the noise detecting parts are not read and/or are not used by the image configuration circuit when configuring the radiation image, and/or the photoelectric conversion parts adjacent to the noise detecting parts are not electrically connected with the control and/or signal detection circuits.

A radiation detector includes control and data lines extending respectively in mutually-orthogonal first and second directions, photoelectric conversion parts respectively in regions defined by the control and data lines, noise detecting parts outside a region including the photoelectric conversion parts, a control circuit inputting control signals to first and second thin film transistors located respectively in the photoelectric conversion and noise detecting parts, a signal detection circuit reading image data and noise signals respectively from the photoelectric conversion and noise detecting parts, and an image configuration circuit configuring a radiation image based on the signals that are read. The signals from the photoelectric conversion parts adjacent to the noise detecting parts are not read and/or are not used by the image configuration circuit when configuring the radiation image, and/or the photoelectric conversion parts adjacent to the noise detecting parts are not electrically connected with the control and/or signal detection circuits.

Disclosed herein is a radiological instrument (100, 200, 300, 400, 600, 700, 800) comprising at least one pulse shaper circuit (102) configured for a direct conversion radiation detector (108). The at least one pulse shaper circuit comprises an amplifier (110). The pulse shaper further comprises a feedback circuit (118) connected in parallel with the amplifier; a first switching unit (120) connected in series with the feedback circuit; a second switching unit (122) connected in parallel with the amplifier; a discriminator circuit (124) that provides a discriminator signal (128) when the output exceeds a controllable signal threshold; and a control unit (124) for controlling the first switching unit and the second switching unit, wherein the control unit controls the second switching unit such that a substantial part of the signal is integrated, when the second switching unit is closed.

One embodiment is a method for counting charge events detected by a pixel in a photon-counting computed tomography (PCCT) scanning system comprising a plurality of discriminators, wherein each discriminator is associated with a respective one of a plurality of threshold voltage levels. The method includes detecting a signal output from one of the discriminators; incrementing a quantitative count corresponding to the threshold voltage level associated with the one of the discriminators if the detected discriminator output signal meets a first condition; and incrementing a qualitative count if the detected discriminator output signal meets at least one second condition.