A radiation detector according to an embodiment includes a plurality of radiation detector modules and a fixing frame. When a radiation detector module is attached to the fixing frame, a guiding part with a groove shape formed at an end of a support member of the radiation detector module on a side of the fixing frame is fitted to a guiding pin provided to an end of the fixing frame, so that the radiation detector module is positioned in a radiation irradiation direction while a movement thereof in a channel direction and a row direction is restricted.

A radiation detection apparatus includes a flexible substrate, a radiation detector located on the flexible substrate, a drive located on a side portion of the flexible substrate and adjacent to the radiation detector to drive the radiation detector, and a relay including a plurality of wiring layers connected to the drive. The relay is for external connection and located on an extension of the flexible substrate. The extension extends outward from the side portion. The relay may include a basal portion adjacent to the side portion. The basal portion may have a width less than a width of the side portion.

A photodetector (90) having an exposure surface (91) has a first photodiode array (1) having a first light entry surface (11) and a second photodiode array (2) having a second light entry surface (21). The first photodiode array (1) has an avalanche photodiode (10). The second photodiode array (2) has a non-amplifying photodiode (10). The first light entry surface (11) and the second light entry surface (21) form sub-surfaces of the exposure surface (91).

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.

Disclosed is an imaging apparatus comprising: a segmented scintillator structure; and a photocathode structure optically coupled to the segmented scintillator structure, for conversion of high-energy particles with an arbitrary spatial distribution to a corresponding distribution of photoelectrons, emitted with a spread in energy ranging from 100 meV to 1 meV. Also disclosed is an imaging apparatus comprising: a segmented scintillator structure, and a photocathode structure optically coupled to the segmented scintillator structure, for conversion of high-energy particles with an arbitrary spatial distribution to a corresponding distribution of photoelectrons, emitted with an angular spread ranging from 10 degrees to 0.1 degrees. Also disclosed is a pressureless filling of capillary tubes and nano-molds using electroosmosis effect.

A radiation detector manufacturing method is provided. The method includes: preparing a structure including a support base, a flexible base member arranged on the support base and having a principal surface including a pixel region in which a plurality of pixels are arranged, a scintillator arranged so as to cover the pixel region, and a protective layer arranged so as to cover the scintillator; and removing the support base from the flexible base member. The principal surface includes a peripheral region not covered with the protective layer. The method further includes, before the removing, arranging a reinforcing member in contact with the peripheral region, in a position overlapping the peripheral region and not overlapping the scintillator, in orthogonal projection to the principal surface.

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.

There are provided a radiation detector module, a radiation detector, and a radiographic imaging apparatus which make it possible to increase the row number while suppressing a length in a body-axis direction. The radiation detector module includes a detector substrate on which a scintillator, a photodiode, and AD conversion chips are loaded, and a control substrate which supplies power to the detector substrate and controls the operation of an AD conversion unit (AFE) of each AD conversion chip of the detector substrate. The plurality of radiation detector modules configure a radiation detector which suppresses the length in the body-axis direction by connecting together the two substrates so as to form a two-stage structure by stacking connectors.

The invention discloses a scanning method and apparatus suitable for scanning a pipeline or a process vessel in which a beam of gamma radiation from a source is emitted through the pipeline or the process vessel to be detected by an array of detectors, which are each collimated to detect gamma radiation over a narrow angle relative to a width of the emitted beam of gamma radiation.

Disclosed herein are variations of megavoltage (MV) detectors that may be used for acquiring high resolution dynamic images and dose measurements in patients. One variation of a MV detector comprises a scintillating optical fiber plate, a photodiode array configured to receive light data from the optical fibers, and readout electronics. In some variations, the scintillating optical fiber plate comprises one or more fibers that are focused to the radiation source. The diameters of the fibers may be smaller than the pixels of the photodiode array. In some variations, the fiber diameter is on the order of about 2 to about 100 times smaller than the width of a photodiode array pixel, e.g., about 20 times smaller. Also disclosed herein are methods of manufacturing a focused scintillating fiber optic plate.