Perovskite single crystal X-ray radiation detector devices including an X-ray wavelength-responsive active layer including an organolead trihalide perovskite single crystal, a substrate layer comprising an oxide, and a binding layer disposed between the active layer and the substrate layer. The binding layer including a binding molecule having a first functional group that bonds to the organolead trihalide perovskite single crystal and a second functional group that bonds with the oxide. Inclusion of the binding layer advantageously reduces device noise while retaining signal intensity.

Perovskite single crystal X-ray radiation detector devices including an X-ray wavelength-responsive active layer including an organolead trihalide perovskite single crystal, a substrate layer comprising an oxide, and a binding layer disposed between the active layer and the substrate layer. The binding layer including a binding molecule having a first functional group that bonds to the organolead trihalide perovskite single crystal and a second functional group that bonds with the oxide. Inclusion of the binding layer advantageously reduces device noise while retaining signal intensity.

The invention relates to an inorganic scintillator material of formula Lu .sub.(2−y) Y .sub.(y−z−x) Ce.sub.xM.sub.zSi.sub.(1−v) M′ .sub.vO.sub.5, in which:

M represents a divalent alkaline earth metal and

M′ represents a trivalent metal,

(z+v) being greater than or equal to 0.0001 and less than or equal to 0.2;

z being greater than or equal to 0 and less than or equal to 0.2;

v being greater than or equal to 0 and less than or equal to 0.2;

x being greater than or equal to 0.0001 and less than 0.1; and

y ranging from (x+z) to 1.

In particular, this material may equip scintillation detectors for applications in industry, for the medical field (scanners) and/or for detection in oil drilling. The presence of Ca in the crystal reduces the afterglow, while stopping power for high-energy radiation remains high.

The invention relates to an inorganic scintillator material of formula Lu .sub.(2−y) Y .sub.(y−z−x) Ce.sub.xM.sub.zSi.sub.(1−v) M′ .sub.vO.sub.5, in which:

M represents a divalent alkaline earth metal and

M′ represents a trivalent metal,

(z+v) being greater than or equal to 0.0001 and less than or equal to 0.2;

z being greater than or equal to 0 and less than or equal to 0.2;

v being greater than or equal to 0 and less than or equal to 0.2;

x being greater than or equal to 0.0001 and less than 0.1; and

y ranging from (x+z) to 1.

In particular, this material may equip scintillation detectors for applications in industry, for the medical field (scanners) and/or for detection in oil drilling. The presence of Ca in the crystal reduces the afterglow, while stopping power for high-energy radiation remains high.

A scintillator panel includes a substrate, a resin protective layer formed on the substrate and made of an organic material, a barrier layer formed on the resin protective layer and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and including cesium iodide with thallium added thereto as a main component. According to this scintillator panel, moisture resistance can be improved due to the barrier layer provided therein.

A scintillator panel includes a substrate, a resin protective layer formed on the substrate and made of an organic material, a barrier layer formed on the resin protective layer and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and including cesium iodide with thallium added thereto as a main component. According to this scintillator panel, moisture resistance can be improved due to the barrier layer provided therein.

A nanocrystal scintillator that contains a thin-film layer of perovskite-based quantum dots coated on a substrate layer. The quantum dots each have a formula of CsPbX.sub.aY.sub.3-a, CH.sub.3NH.sub.3PbX.sub.3, or NH.sub.2CH═NH.sub.2PbX.sub.3, in which each of X and Y, independently, is Cl, Br, or I, and a is 0-3. The substrate layer is an aluminum substrate, a fluoropolymer substrate, a fiber optic plate, a ceramic substrate, or a rubber substrate. Also disclosed are an ionizing radiation detector and an ionizing radiation imaging system containing such a nanocrystal scintillator.

A scintillator panel 10 includes a substrate 11 having a substrate main surface 11a, a substrate rear surface 11b, and a substrate side surface 11c; and a scintillator layer 12 having a scintillator rear surface 12b formed of a plurality of columnar crystals, a scintillator main surface 12a, and a scintillator side surface 12c. The substrate side surface 11c and the scintillator side surface 12c are substantially flush with each other. In the substrate 11, an angle A1 between the substrate rear surface 11b and the substrate side surface 11c is smaller than 90 degrees.

A scintillator panel 10 includes a substrate 11 having a substrate main surface 11a, a substrate rear surface 11b, and a substrate side surface 11c; and a scintillator layer 12 having a scintillator rear surface 12b formed of a plurality of columnar crystals, a scintillator main surface 12a, and a scintillator side surface 12c. The substrate side surface 11c and the scintillator side surface 12c are substantially flush with each other. In the substrate 11, an angle A1 between the substrate rear surface 11b and the substrate side surface 11c is smaller than 90 degrees.

Lutetium oxide-based scintillator materials, as well as corresponding methods and systems, are described.