A neutron conversion foil for being used in a neutron detector includes a substrate having a first and second side. The substrate is covered at least on one of the first and second sides with a neutron conversion layer made of a neutron reactive material and being capable of capturing neutrons to thereafter emit light and/or charged particles. The neutron conversion foil is transparent to light such that light originating from the conversion of neutrons can pass through one or several of the neutron conversion foils and thereafter be collected and detected by a light sensing device.

An X-ray imagining film that transforms X-ray radiation into visible light by scintillating, includes a substrate and a nanocomposite formed on the substrate. The nanocomposite includes perovskite nanosheets and plural organic chromophores that interact with the perovskite nanosheets through FPb bonds. The perovskite nanosheets are selected to absorb the X-ray radiation and emit first light centered on 510 nm, and the plural organic chromophores are selected to absorb second light between 400 and 600 nm, with a peak at 510 nm, and emit the visible light in 500 to 800 nm range.

Metal halide scintillators are described. More particularly, the scintillators include doped (e.g., europium-doped) ternary metal halides, such as those of the formulas A.sub.2BX.sub.4 and AB.sub.2X.sub.5, wherein A is an alkali metal, such as Li, Na, K, Rb, Cs or any combination thereof; B is an alkali earth metal, such as Be, Mg, Ca, Sr, Ba or any combination thereof; and X is a halide, such as Cl, Br, I, F or any combination thereof. Radiation detectors comprising the novel metal halide scintillators and other ternary metal halides, such as those of the formulas A.sub.2EuX.sub.4 and AEu.sub.2X.sub.5, wherein A is an alkali metal and X is a halide, are also described.

Metal halide scintillators are described. More particularly, the scintillators include doped (e.g., europium-doped) ternary metal halides, such as those of the formulas A.sub.2BX.sub.4 and AB.sub.2X.sub.5, wherein A is an alkali metal, such as Li, Na, K, Rb, Cs or any combination thereof; B is an alkali earth metal, such as Be, Mg, Ca, Sr, Ba or any combination thereof; and X is a halide, such as Cl, Br, I, F or any combination thereof. Radiation detectors comprising the novel metal halide scintillators and other ternary metal halides, such as those of the formulas A.sub.2EuX.sub.4 and AEu.sub.2X.sub.5, wherein A is an alkali metal and X is a halide, are also described.

Metal halide scintillators are described. More particularly, the scintillators include doped (e.g., europium-doped) ternary metal halides, such as those of the formulas A.sub.2BX.sub.4 and AB.sub.2X.sub.5, wherein A is an alkali metal, such as Li, Na, K, Rb, Cs or any combination thereof; B is an alkali earth metal, such as Be, Mg, Ca, Sr, Ba or any combination thereof; and X is a halide, such as Cl, Br, I, F or any combination thereof. Radiation detectors comprising the novel metal halide scintillators and other ternary metal halides, such as those of the formulas A.sub.2EuX.sub.4 and AEu.sub.2X.sub.5, wherein A is an alkali metal and X is a halide, are also described.

A scintillator panel includes: a flexible substrate; a phosphor arranged on the flexible substrate; and a thermal expansion compensation layer disposed between the flexible substrate and the phosphor, wherein a linear expansion coefficient of the thermal expansion compensation layer is greater than a thermal expansion coefficient of the phosphor, and surfaces, of the thermal expansion compensation layer and of the flexible substrate, in contact with each other each contain an organic substance.

In a scintillator panel, a glass substrate with the thickness of not more than 150 m serves as a support body, thereby achieving excellent radiotransparency and flexibility and also relieving a problem of thermal expansion coefficient. Furthermore, in this scintillator panel, an organic resin layer is formed so as to cover a one face side and a side face side of the glass substrate and an organic resin layer is formed so as to cover an other face side and the side face side of the glass substrate on which the organic resin layer is formed. This effectively prevents the edge part from chipping or cracking. Furthermore, stray light can be effectively prevented from entering the side face of the glass substrate and, the entire surface thereof is covered by the organic resin layers, so that warping of the glass substrate can be suppressed.