Fujifilm Corporation

Sharp Kabushiki Kaisha Corporation

Nissan Motor Company Limited

Sanyo Electric Co., Ltd.

Other

Unisia Jecs Corporation

Hitachi, Ltd.

Pioneer Corporation

Jvc Kenwood Corporation

Yoshihiro Okada

Atsushi Ban

Masaya Okamoto

Shinya Yamakawa

Haruyasu Nakatsugawa

Hiroyuki Ohgami

Yuichi Saito

Toshihide Tsubata

Shoji Okazaki

Kenji Nakamura

Kazunari Tomizawa

Tomoki Inoue

Toshinori Sugihara

Wataru Nakamura

Seonwook Whang

Naoyuki Nishino

Takeshi Kuwabara

Munetaka Kato

Naoto Iwakiri

Atsuhito Murai

Fumito Nariyuki

Takashi Hashimoto

Shinichi Ushikura

Koji Takahashi

Shinya Momokawa

Keiichi Akamatsu

Kouichi Ishizuka

Hiromitsu Katsui

Taiki Aoyama

Kozo Nakamura

Takayuki Shimada

Junji Shiokawa

Kenji Takahashi

Takao Kuwabara

Takuya Yoshimi

Junichi Furuya

Yutaka Sawayama

Shinichi Nakagawa

Kenichiro Tada

Takashi Sato

Naoyuki Ohkoshi

Toshio Takahata

Yuichi Kanai

Kyoichi Terao

Koji Taniguchi

Osamu Horiuchi

Hirotaka Watano

Toshiyuki Nabeta

Yukitaka Shimizu

Takahiko Ogo

Yasuaki Yamada

Joel Baek

Masahiro Hisatomi

Kaoru Sasaki

Yuzo Otsuru

Isaya Kitamura

Masakazu Inami

Yoshiki Nakamura

Shuhei Yamashita

Tooru Kitayama

A radiation detector including: a substrate formed with plural pixels that accumulate electrical charges generated in response to light converted from radiation in a pixel region at an opposite-side surface of a base member to a surface including a fine particle layer; the base member being flexible and is made of resin and that includes a fine particle layer containing inorganic fine particles having a mean particle size of from 0.05 &#x3bc;m to 2.5 &#x3bc;m, a conversion layer provided at the surface of the base member provided with the pixel region and configured to convert the radiation into light; and a reinforcement substrate provided to at least one out of a surface on the substrate side of a stacked body configured by stacking the substrate and the conversion layer, or a surface on the conversion layer side of the stacked body.

Radiation detector comprising a reinforcement substrate, radiographic imaging device, and manufacturing method

A radiation detector including: a substrate formed with a plural pixels in pixel region of a flexible base member, the plural pixels accumulates charges generated in response to light converted from radiation; a conversion layer provided at a surface to which the pixel region is provided on the base member, the conversion layer converts the radiation into light; and a reinforcement substrate provided at a surface of the conversion layer that faces a surface of the substrate side, the reinforcement substrate contains a material having a yield point and has a higher rigidity than the base member.

Radiation detector, radiographic imaging device, and manufacturing method

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.

Radiographic imaging device, radiographic imaging system, control method of radiographic imaging device and program storage medium

A radiographic imaging device includes a radiation detection element including plural same sized hexagonal shaped pixels that detect radiation and are arrayed in a honeycomb pattern, and a pixel density conversion section that performs interpolation processing such that first image data obtained from the radiation detection element is converted into second image data representing an image in which plural pixels are arrayed in a square grid pattern, wherein when dmax denotes the length of the longest diagonal of the hexagonal shaped pixels, Sdenotes the surface area of the hexagonal shaped pixels, and dmax denotes the length of the diagonals of the square grid of the second image data, dmax is equal to or greater than dmax, and dmax is equal to or greater than the value of the square root of S

Radiographic imaging device and radiographic imaging method using interpolation from hexagonal to square pixels

In an X-ray imaging apparatus, a detection panel has monitor pixels for monitoring X-rays. A signal processor samples a dose signal of a dose per unit time of X-rays according to an output of the monitor pixels. A start detector checks whether irradiation of X-rays is started according to a result of comparison between the dose signal and a start threshold. An AEC device acquires cumulative dose from a start time of the start of irradiation of X-rays until acquisition time after a predetermined time according to the dose signal. According to the cumulative dose, a predicted time point of a reach of the cumulative dose to a target dose is estimated. A stop signal is transmitted to a radiation source controller at the predicted time point, to stop the irradiation of X-rays.

Radiographic imaging apparatus, method and system

The present invention provides a radiation detector, a radiographic imaging device and a radiographic imaging system that may detect radiation with high precision. Namely, in the radiation detector, radiation detection pixels include detection TFTs, and light that has been converted from radiation is illuminated directly from a scintillator onto the detection TFTs. Accordingly, leak current occurs in semiconductor active layers of the detection TFTs corresponding to the amount (intensity) of the illuminated light, and the leak current flows in to signal lines. Accordingly, radiation may be detected by monitoring the leak current, and enables timings, such as the start of irradiation of radiation, to be detected.

Radiation detector, radiographic imaging device and radiographic imaging system

The present invention provides a radiographic imaging device, radiographic imaging system, a program for controlling the radiographic imaging device, and a method for controlling the radiographic imaging device that may accurately detect start of irradiation of radiation even noises are generated by interference or the like. When radiation is irradiated, electric signals outputted from radiation detection pixels in charge accumulation period are detected by signal detection circuit during detection period. Control section determines whether time variation of the electric signals feature pre-specified characteristics of noise. If not, the start of the irradiation of radiation has been properly detected, the charge accumulation period continues, and radiographic image is imaged. However, if the electric signals feature the pre-specified characteristics, it is determined that the start of the irradiation of radiation has been misdetected, the charge accumulation period is stopped, and is switched to radiation detection period.

Radiographic imaging device, radiographic imaging system, computer readable medium storing program for controlling radiographic imaging device, and method for controlling radiographic imaging device

A radiation detection element includes plural hexagonal pixels arrayed in a honeycomb form and having sensor portions that generate charges due to radiation being irradiated. The radiation detection element includes charge accumulating capacitors that accumulate generated charges, and TFT switches for reading-out the charges accumulated at the capacitors. The radiation detection element includes scan lines disposed parallel in a first direction, to which switching signals that control switching of the TFT switches are outputted; and data lines disposed parallel in a second direction intersecting the first direction, to which charges read-out by the TFT switches are outputted. The TFT switches are disposed to be, in the first direction, connected to the data lines from alternately different sides of the data line, and such that an arrangement of source electrodes and drain electrodes of the TFT switches is the same in the first direction.

Radiation detection element and radiograph detection device

The present invention provides an electromagnetic wave detecting element that can suppress occurrence of cracking at a substrate peripheral portion, and occurrence of breakage of lead-out wires. An interlayer insulating film is formed so as to cover TFT switches on a substrate. An interlayer insulating film is formed so as to cover semiconductor layer of sensor portions that generate charges due to electromagnetic waves that are an object of detection being irradiated, and cover a region on the substrate where the interlayer insulating film is formed.

Electromagnetic wave detecting element

A monocoque-structured housing accommodates a photoelectric conversion panel, a scintillator, and a circuit board in this order from an X-ray incidence side. The scintillator contains cesium iodide and converts X-rays into visible light. The scintillator is vapor-deposited on the photoelectric conversion panel. A plurality of pixels that photoelectrically convert the visible light into charges are formed in the photoelectric conversion panel. A signal processor, which reads out the charge from each pixel and generates image data, is mounted on the circuit board. A gap layer is formed between the scintillator and the circuit board.

Radiographic image detection device

The present invention provides radiation detector, radiographic imaging device and radiographic imaging system that may detect irradiated radiation while maintaining quality of radiographic image. The radiation detector has: pixels having a sensor portion that generates charges in accordance with light converted from irradiated radiation, TFT switch that outputs, to a signal line, charges read-out from the sensor portion, and radiation detection TFT switch that is not connected to a signal line; and radiation detection pixels that have the sensor portion, the TFT switch, and radiation detection TFT switch that is connected to a signal line and that outputs, to the signal line, charges read-out from the sensor portion. The radiation detection TFT switches are connected to radiation detection scan lines, and ON/OFF states are controlled by scan signals that are outputted from a radiation detection control circuit.

Radiation detector, radiographic imaging device, and radiographic imaging system

Growing community of inventors

Kanagawa, Japan

Yoshihiro Okada