A ceramic lithium indium diselenide or like radiation detector device formed as a pressed material that exhibits scintillation properties substantially identical to a corresponding single crystal growth radiation detector device, exhibiting the intrinsic property of the chemical compound, with an acceptable decrease in light output, but at a markedly lower cost due to the time savings associated with pressing versus single crystal growth.

A scintillator system is disclosed for detecting incoming radiation. The system makes use of a scintillator structure having first and second dissimilar materials. The first dissimilar material emits a first color of light and the second dissimilar material emits a second color of light different from the first color of light. Either one, or both, of the first or second colors of light are emitted in response to receipt of the incoming radiation. A plurality of light detectors is disposed in proximity to the scintillator structure for detecting the first and second different colors of light and generating output signals in response thereto. A detector electronics subsystem is responsive to the output signals and provides an indication of colors emitted by the scintillator structure to infer at least one property of the incoming radiation.

An improved scintillator nanocomposite comprising nanoparticles with scintillating properties and a diameter between 10 and 50 nanometer and a first matrix material comprises is obtained by introducing the nanoparticles into a dispersing medium to form a stable suspension. The dispersing medium is a precursor to the first matrix material, which is cured to form the first matrix material.

Chemically-modified silicone-based matrices for use in radiation detection. The base matrix is capable of multi-modal particle detection via pulse shape discrimination (PSD), relying in differences in the interaction mechanics between various types of radiation and the matrix itself to produce light with characteristic properties dependent on the incident particle type and energy. The materials, radiation detection devices using the materials, and methods of using the materials as radiation detectors.

A method of manufacturing a radiation detector includes adding a fluorescing medium to an additive manufacturing consumable to form a consumable mixture; additively manufacturing a plastic scintillator from the consumable mixture; and coupling the plastic scintillator to a light-to-current device, thereby forming an additively manufactured plastic scintillation detector.

A scintillation device including a silicon plate having a rectangular shape and having a first side and a second side opposite the first side, wherein the first side includes a plurality of first channels arranged to be in parallel with each other extending in a first direction, wherein walls in the silicon plate that form the first channels are coated with an optically reflective or dielectric layer, and wherein the first channels are filled with a scintillation resin in a solid state forming a first waveguide.

A scintillator array includes: a structure having scintillator segments and a first reflective layer, the first reflective layer being provided between the scintillator segments and being configured to reflect light, and the scintillator segments having a sintered compact containing a rare earth oxysulfide phosphor; and a layer having a second reflective layer provided above the structure, the second reflective layer being configured to reflect light. The first reflective layer has a portion extending into the layer.

A formulation for forming a styrene-based scintillator using light-directed additive manufacturing techniques includes a base monomer, a primary dye, a secondary dye, and a cationic photoinitiator. The base monomer includes one or more styrene-derivative monomers.

Polymerization composition for manufacturing a hybrid material for plastic scintillation detection comprising: monomers, oligomers or their mixtures intended to form at least one constituent polymer of a polymeric matrix; a liquid fluorescent mixture comprising i) 95.6 molar % to 99.1 molar % of a main primary fluorophore consisting of naphthalene and ii) 0.9 molar % to 4.4 molar % of an additional primary fluorophore, the centroid of the light absorption spectrum and of the fluorescence emission spectrum, the fluorescence decay constant and the fluorescence quantum yield of which are judiciously chosen.

The decay constant of the fluorescence of the hybrid material manufactured with the polymerization composition is intermediate between that of a fast plastic scintillator material and of a slow plastic scintillator material. Further, it can be chosen over a wide range.

The invention also relates to ready-for-use kits for manufacturing a polymerization composition.

Hybrid material for plastic scintillation measurement comprising: a polymeric matrix; and a fluorescent mixture incorporated in the polymeric matrix and comprising, with respect to the total number of moles of primary fluorophore in the incorporated fluorescent mixture, i) from 95.6 molar % to 99.6 molar % of a main primary fluorophore consisting of naphthalene and ii) from 0.4 molar % to 20 molar % of an additional primary fluorophore.

The decay constant of the fluorescence of the hybrid material is intermediate between that of a fast plastic scintillator material and of a slow plastic scintillator material. Further, they can be chosen over a wide range.

The invention also relates to an associated part, device and item of equipment, to their processes of manufacture or their methods of measurement.