A radiological image conversion panel 2 is provided with a phosphor 18 containing a fluorescent material that emits fluorescence by radiation exposure, in which the phosphor includes, a columnar section 34 formed by a group of columnar crystals which are obtained through columnar growth of crystals of the fluorescent material, and a non-columnar section 36, the columnar section and the non-columnar section are integrally formed to overlap in a crystal growth direction of the columnar crystals, and a thickness of the non-columnar section along the crystal growth direction is non-uniform in a region of at least a part of the non-columnar section.

A protection film, configured to cover scintillators formed on a scintillator substrate, the scintillators being a plurality of columnar crystal structures protruding from a surface of the scintillator substrate, at least includes a metal alkoxide, and a cross-link formed by cross-linking some of metal atoms of the metal alkoxide by oxygen.

A ceramic scintillator array of an embodiment includes: a plurality of scintillator segments each composed of a sintered compact of a rare earth oxysulfide phosphor; a first reflective layer interposed between the scintillator segments adjacent to each other; and a second reflective layer arranged on a side of surfaces, on which an X-ray is incident, of the plurality of scintillator segments. A difference in dimension between an end portion of a surface of the second reflective layer and a most convex portion of the surface of the second reflective layer is 30 m or less.

A ceramic scintillator array of an embodiment includes: a plurality of scintillator segments each composed of a sintered compact of a rare earth oxysulfide phosphor; and a reflective layer interposed between the scintillator segments adjacent to each other. The reflective layer contains a transparent resin and reflective particles dispersed in the transparent resin. The reflective particles contain titanium oxide and at least one inorganic substance selected from the group consisting of alumina, zirconia, and silica. A glass transition point of the transparent resin is 50? C. or higher, and a thermal expansion coefficient of the transparent resin at a temperature higher than the glass transition point is 3.5?10.sup.?5/? C. or less.

The present invention relates to scintillator compositions and related devices and methods. The scintillator compositions may include, for example, a scintillation compound and a dopant, the scintillation compound having the formula x.sub.1-x.sub.2-x.sub.3-x.sub.4 and x.sub.1 is Cs; x.sub.2 is Na; x.sub.3 is La, Gd, or Lu; and x.sub.4 is Br or I. In certain embodiments, the scintillator composition can include a single dopant or mixture of dopants.

A monocrystalline scintillator comprises a monocrystal and an optical plate wherein a first side of the monocrystal is adhered to the optical plate. The monocrystal comprises at least one of a rare earth garnet, a perovskite crystal, a rare-earth silicate, and a monocrystal oxysulphide. The scintillator assembly includes an adhesive adhering the optical plate to the first side of the monocrystal. The adhesive can comprise an ultra-high vacuum compatible adhesive. The adhesive is substantially transparent and has a refractive index matching the optical plate. The scintillator assembly can also include a reflective coating on the second side of the monocrystal. The monocrystalline scintillator assembly can be incorporated in a microchannel plate image intensifier tube to provide improved spatial resolution and temporal response.

A protection film, configured to cover scintillators formed on a scintillator substrate, the scintillators being a plurality of columnar crystal structures protruding from a surface of the scintillator substrate, at least includes a metal alkoxide, and a cross-link formed by cross-linking some of metal atoms of the metal alkoxide by oxygen.

The present invention provides a scintillator panel which is capable of utilizing light emitted by a phosphor at a high efficiency due to particles having a high refractive index being dispersed within a scintillator layer in a favorable state, which thus allows for a marked reduction in the amount of radiation exposure to a subject or the like, and which has a high luminance. The present invention also provides a scintillator panel including a substrate, and a scintillator layer containing metal compound particles and a phosphor, wherein the phosphor is covered by the metal compound at a coverage ratio of 5% or more.

A radiographic flat panel detector includes a layer configuration in the order given: a) a radiation transparent substrate; and b) a scintillator layer applied by vapor deposition on the radiation transparent substrate; and c) an imaging array between the scintillator layer and a second substrate, characterized in that the radiation transparent substrate has on a side a layer including magnetisable particles and a method for producing the radiographic flat panel detector.

Strontium halide scintillators, calcium halide scintillators, cerium halide scintillators, cesium barium halide scintillators, and related devices and methods are provided.