Patent classifications
G01T1/20182
X-ray CT apparatus and data detection system for X-ray CT apparatus
According to one embodiment, a data detection system for an X-ray CT apparatus includes a data acquisition circuit and a connection structure. The data acquisition circuit includes at least one row of X-ray detection elements arrayed in a channel direction. The data acquisition circuit is configured to acquire data required for generating X-ray CT image data corresponding to the at least one row of the X-ray detection elements. The connection structure is configured to connect the data acquisition circuit with another data acquisition circuit directly or indirectly in a row direction.
ABSORPTION IMAGING APPARATUS AND DETECTOR ARRAY THEREFOR
An array (1) for detecting electromagnetic radiation is provided for a radiographic inspection system (20). The array has a plurality of detector elements (2) arranged consecutively along a scan line which extends in a first direction (Y). Each of the detector elements has a detection surface (3) for receiving electromagnetic radiation and converting the received electromagnetic radiation into a corresponding detection signal. Each detection surface (3) has a surface normal (4, N) that extends in a common plane (S) and converges into a common focus (5). The common plane (S) extends in the first direction (Y). The distances between the common focus and the detection surfaces along the respective surface normal (4, N) are different for at least two detector elements.
RADIOGRAPHY APPARATUS
Provided is a radiography apparatus capable of changing the shape and size at an imaging site. A radiography apparatus (1) includes a scintillator (12), and a substrate (11) that is laminated on the scintillator (12) and has a plurality of photoelectric conversion elements (17) converting light emitted from the scintillator (12) into electric charges, in which a laminate including the scintillator (12) and the substrate (11) is partitioned into a plurality of blocks (10A) to (10I), and the blocks are separable from each other.
INTEGRATED RADIATION DETECTOR DEVICE
According to an embodiment, a device comprises: a scintillator layer configured to convert x-ray or gamma ray photons into photons of visible light; a photodiode layer configured to convert visible light produced by the scintillator layer into an electric current; an integrated circuit, IC, layer situated below the photodiode layer and configured to receive and process the electric current; wherein electrical contacts of the IC layer are connected to electrical contacts of the photodiode layer using wire-bonding; and wherein the wire-bonding is covered with a protective material while bottom part of the IC layer is left at least partly exposed. Other embodiments relate to a detector comprising an array of tiles according to the device; and an imaging system comprising: an x-ray source and the detector.
Integrated radiation detector device
According to an embodiment, a device comprises: a scintillator layer configured to convert x-ray or gamma ray photons into photons of visible light; a photodiode layer configured to convert visible light produced by the scintillator layer into an electric current; an integrated circuit, IC, layer situated below the photodiode layer and configured to receive and process the electric current; wherein electrical contacts of the IC layer are connected to electrical contacts of the photodiode layer using wire-bonding; and wherein the wire-bonding is covered with a protective material while bottom part of the IC layer is left at least partly exposed. Other embodiments relate to a detector comprising an array of tiles according to the device; and an imaging system comprising: an x-ray source and the detector.
Panel Radiation Detector
A panel radiation detector is provided for detecting radiation event(s) of ionizing radiation, comprising a plurality of adjoining plastic scintillator slabs, a plurality of silicon photomultiplier sensors arranged at an edge of at least one of the plastic scintillator slabs) and configured to detect scintillation light generated in the scintillator slabs responsive to the radiation events, and a plurality of signal processing units each connected to one of the silicon photomultiplier sensors, wherein the signal processing units each comprise a digitization circuit configured to generate a digitized signal for signal analysis by executing 1-bit digitization of a detection signal generated by at least one of the silicon photomultiplier sensors responsive to the detected scintillation light for determining the energy of the detected radiation event(s).
Methods of making a radiation detector
Disclosed herein is a method for forming a radiation detector. The method comprises forming a radiation absorption layer and bonding an electronics layer to the radiation absorption layer. The electronics layer comprises an electronic system configured to process electrical signals generated in the radiation absorption layer upon absorbing radiation photons. The method for forming the radiation absorption layer comprises forming a trench into a first surface of a semiconductor substrate; doping a sidewall of the trench; forming a first electrical contact on the first surface; forming a second electrical contact on a second surface of the semiconductor substrate. The second surface is opposite the first surface. The method further comprises dicing the semiconductor substrate along the trench.
Versatile PET detector
A scalable medical imaging detector arrangement is provided having interchangeable sensor tiles with fixed outer dimensions for a fixed or universal mechanical, electrical, and cooling interface. Different sensor tile types with different performance grades and production costs care configured with a common interface for coupling to the medical imaging device, while the rest of the imaging system can remain unchanged.
Modular pet detector comprising a plurality of modular one-dimensional arrays of monolithic detector sub-modules
A gamma-ray detector includes a plurality of modular one-dimensional arrays of monolithic detector sub-modules. Each monolithic detector sub-module includes a scintillator layer, a light-spreading layer, and a photodetector layer. The photodetector layer comprises a two-dimensional array of photodetectors that are arranged in columns and rows. A common printed circuit board is electrically coupled to the two-dimensional array of photodetectors of the plurality of modular one-dimensional arrays of monolithic detector sub-modules of a corresponding modular one-dimensional array. The two-dimensional array of photodetectors can be electrically coupled in a split-row configuration or in a checkerboard configuration. The two-dimensional array of photodetectors can also have a differential readout.
RADIATION DETECTOR, RADIATION DETECTOR MANUFACTURING METHOD, AND IMAGE PROCESSING METHOD
A radiation detector includes a wiring board, a first image sensor, a second image sensor, a first fiber optic plate, a second fiber optic plate, and a scintillator layer. The first fiber optic plate can guide light between a first light entering region and a first light exiting region. The second fiber optic plate can guide light between a second light entering region and a second light exiting region. One side of the first light entering region and one side of the second light entering region are in contact with each other. The first light exiting region is positioned on a first light receiving region. The second light exiting region is positioned on a second light receiving region. One side surface of a first side surface and one side surface of a second side surface exhibit shapes along each other and in contact with each other.