A radiation detector includes a sensor substrate, a conversion layer, and a reinforcing substrate. In the sensor substrate, a plurality of pixels for accumulating electric charges generated in response to light converted from radiation are formed on a pixel region of a flexible base material. The conversion layer is provided on a first surface of the base material on which the pixels are provided and converts radiation into light. The reinforcing substrate is provided on a surface of the conversion layer opposite to a surface on the base material side and includes a porous layer having a plurality of through-holes to reinforce the stiffness of the base material.

The disclosure concerns a collar device configured for attachment with an image receptor of an X-ray or similar imaging system, the collar device including a radiolucent bar and linear light source, the combination of which being used for patient positioning, identification of surgical entry point and trajectory guidance of instrumentation.

A first positional information derivation unit derives three-dimensional positional information of at least one target point of a target structure in a subject as first positional information. A second positional information derivation unit derives three-dimensional positional information of at least one feature point on an insertion structure inserted to the target structure in the subject as second positional information. A display control unit displays a positional information screen indicating a positional relationship between the target point and the feature point on a display unit.

Provided is a particle detection device and method of fabrication thereof. The particle detection device includes a scintillator array that includes a plurality of scintillator crystals; a plurality of detectors provided on a bottom end of the scintillator array; and a plurality of prismatoids provided on a top end of the scintillator array. Prismatoids of the plurality of prismatoids are configured to redirect particles between top ends of crystals of the scintillator array. Bottom ends of a first group of crystals of the scintillator array are configured to direct particles to a first detector of the plurality of detectors and bottom ends of a second group of crystals of the scintillator array are configured to direct particles to a second detector substantially adjacent to the first detector.

The subject of this invention is a system and method for distortion adaptation for use with an imaging grid alignment apparatus (analogue or digital) and method of intra-operative use for joint replacements, spine, trauma fracture reductions and deformity correction and implant placement/alignment. The system provides for real time dynamic position tracked distortion-adaption grid.

A problem addressed by the present invention is to provide a scintillator panel having excellent sensitivity and sharpness, and the spirit of the present invention is that the scintillator panel includes a base plate and a scintillator layer containing a binder resin and a phosphor, said scintillator layer further containing a compound represented by the following general formula (1) and/or a salt thereof; ##STR00001## (wherein, in the general formula (1), R represents a C.sub.1-30 hydrocarbon group; m represents an integer of 1 to 20; n represents 1 or 2; and when n is 2, a plurality of Rs may be the same or different).

The present disclosure provides a gamma ray imaging device and an imaging method, where the imaging device includes a plurality of separate detectors. The plurality of separate detectors are provided at an appropriate spatial position, in an appropriate arrangement manner and are of an appropriate detector material, such that when rays emitted from different positions in an imaging area reach at least one of the plurality of separate detectors, at least one of the thicknesses of the detectors, the materials of the detectors, and the numbers of the detectors though which the rays pass are different, thereby achieving the effect of determining the directions of rays.

For radiation safety, a fluoroscope has an adjustable X-ray source-to-intensifier distance (SID) and an X-ray transparent spacer positioned between the source and receptor. As a distance between the source and the intensifier is changed, the spacer is moved or a different sized transparent spacer is used, to ensure a safe minimum skin-to-source distance (SSD) is maintained. A processor is programmed to inhibit the generation of X-rays if the SID is greater than a defined distance and the spacer is not in position.

Embodiments of the present invention provide a radiation image detector and a manufacture method to produce the radiation image detector. The radiation image detector includes: a radiation conversion layer, configured to convert a radiation image into a visible light image; an image sensing layer for visible light, including a pixel array formed by a plurality of photosensitive pixels, configured to detect the visible light image; and a microlens layer, disposed between the radiation conversion layer and the image sensing layer, the microlens layer including a lens array formed by multiple micro convex lenses, and optical axes of the micro convex lenses being perpendicular to the image sensing layer. In addition, both the radiation conversion layer and the microlens layer have curved surface structures that are bended in the same direction that non-parallel radiations, emitted from an X-ray generator, will impinge perpendicularly on the radiation conversion layer.

A control unit 30 includes: an image storage unit 31 constituted by a first image storage unit 32 that stores multiple templates created on the basis of an image including a specific site of a subject and a second image storage unit 33 that stores multiple positive images created on the basis of an image including the specific site of the subject; a learning unit 34 that, on the basis of the multiple positive images, creates a discriminator by machine learning; a position selection unit 35 that, with use of multiple images obtained by collecting an image including the specific site of the subject at a predetermined frame rate, selects a region including the specific site by machine learning using the discriminator; and a position detection unit 36 that detects the position of the specific site by performing template matching using the multiple templates on the region including the specific site selected by the position selection unit 35.