A scintillator array includes: a structure having at least one scintillator segment and a first reflective layer, the at least one scintillator segment and the first reflective layer having a first surface and a second surface, the at least one scintillator segment having a sintered compact containing a rare earth oxysulfide phosphor, and the first reflective layer being configured to reflect light; and a second reflective layer provided above the first surface via an adhesive layer, the adhesive layer having a thickness of 2 μm or more and 40 μm or less, and the second reflective layer having a film configured to reflect light.

A scintillator array includes: a structure having at least one scintillator segment and a first reflective layer, the at least one scintillator segment and the first reflective layer having a first surface and a second surface, the at least one scintillator segment having a sintered compact containing a rare earth oxysulfide phosphor, and the first reflective layer being configured to reflect light; and a second reflective layer provided above the first surface via an adhesive layer, the adhesive layer having a thickness of 2 μm or more and 40 μm or less, and the second reflective layer having a film configured to reflect light.

Provided is a scintillator panel including a substrate, grid-like barrier ribs formed on the substrate, and a phosphor layer in a cell separated by the barrier ribs, in which the barrier rib includes on its surface in the following order: a metallic reflective layer, and an inorganic protective layer mainly containing a nitride.

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).

A value document has a security marking in the form of two luminescent substances whose the emission spectra partially overlap in a primary emission range. The emission spectra have a degree of overlap of less than 80% and more than 5%, wherein the luminescent substances have different individual decay times in the primary emission range. The individual decay times of the luminescent substances differ from each other by more than 50% with reference to the shortest individual decay time.

A fluorescent screen is configured to convert an X-ray into visible light to one embodiment. The screen includes a gadolinium oxysulfide phosphor activated with praseodymium and cerium. The phosphor contains praseodymium having a concentration of 0.01 mass % or more and 0.3 mass % or less and cerium having a concentration of 5 ppm or more and 30 ppm or less. An average particle diameter of the phosphor is 10 μm or more and 20 μm or less. A weight per unit area of the phosphor is 270 mg/cm.sup.2 or more and 380 mg/cm.sup.2 or less.

A charged particle detection material which can detect charged particles due to a discharge phenomenon or the like caused even in a very low voltage which cannot be observed by a prior art, as well as a charged particle detection film and a charged particle detection liquid using the material. The charged particle detection material and the charged particle detection film contain at least one of a fluorescent substance, a luminescent substance, an electroluminescent substance, a fractoluminescent substance, a photochromic substance, an afterglow substance, a photostimulated luminescent substance and a mechanoluminescent substance and can easily detect emission or incidence of charged particles in real time.

A material comprising a first layer of matrix material doped with a dopant metal is disclosed. The matrix material comprises a rare-earth metal, oxygen, and one or both of sulfur and selenium. In the first layer of matrix material doped with the dopant metal, the rare-earth metal has an oxidation state of +3 and the dopant metal has an oxidation state of +2. Further is disclosed a method for fabricating the material and a device comprising the material.

A value document has a security marking in the form of two luminescent substances whose the emission spectra partially overlap in a primary emission range. The emission spectra have a degree of overlap of less than 80% and more than 5%, wherein the luminescent substances have different individual decay times in the primary emission range. The individual decay times of the luminescent substances differ from each other by more than 50% with reference to the shortest individual decay time.

Provided is a scintillator panel including a substrate, grid-like barrier ribs formed on the substrate, and a phosphor layer in a cell separated by the barrier ribs, in which the barrier rib includes on its surface in the following order: a metallic reflective layer, and an inorganic protective layer mainly containing a nitride.