Provided are a scintillator and the like capable of improving emission intensity. A scintillator (S) comprises a sapphire substrate (6), a GaN layer (4) that is provided on the incident side to the sapphire substrate (6) and includes GaN, a quantum well structure (3) provided on the incident side to the GaN layer (4), and a conductive layer (2) provided on the incident side to the quantum well structure (3), wherein a plurality of emitting layers (21) including InGaN and a plurality of barrier layers (22) including GaN are alternatively stacked in the quantum well structure (3), and an oxygen-containing layer (23) including oxygen is provided between the quantum well structure (3) and the conductive layer (2).

An excore detector assembly for measuring flux outside of a nuclear reactor core. The excore detector assembly includes a housing and at least one self-powered detector inside the housing for measuring flux generated by the nuclear reactor core. The at least one self-powered detector includes a sheath, a detector material section inside the sheath, an insulator between the sheath and the detector material, and a flux signal output line.

A detector system which can be switched between single photon counting and charge integrating mode depending on the application, the photon flux and energy. Although the space for electronics in a pixel or strip detector system is very limited (as each channel is limited by the pixel size), the reconfiguration of the analog chain and the logic/counter in this smart way yields to have a detector system allowing both modes of operation and, therefore, effectively combining the characteristics of an Eiger® single photon counting system and a Jungfrau® charge integrating pixel detector system into one single detector. Depending on the application, the flux and the photon energy, the operator is enabled to switch between single photon counting and charge integrating mode of operation.

Epoxy-based inline infrared (IR) filter assembly, and manufacture and use of the same. Co-axial infrared filter assemblies comprise a substantially cylindrical filter body forming a central cavity characterized by opposing holes at each end. The filter body forms an outer conductor, and SMA connectors coupled to the opposing holes at each end of the body are electrically coupled to form an inner conductor positioned along a long axis of the filter body. An infrared absorbing material (such as castable epoxy resin) fills the central cavity of the filter body. Methods for producing the co-axial infrared filter include pressing SMA connectors into the respective ends of the filter body, electrically coupling the SMA connectors, and filling the filter body with epoxy. Electronic systems for operating a dark matter detector include a feedline comprising a coaxial filter configured to advantageously block infrared noise.

A capsule composition comprising: (a) a polyester shell having a thickness of no more than 20 microns, and (b) a solution containing a visual and/or olfactory indicator, wherein the solution is encapsulated by the polyester shell. Also described herein is a method for detecting alpha particle radiation, in which: (i) the capsule composition is placed in contact with an esterase in a location where the presence of alpha particle radiation is being determined; (ii) waiting a period of time for the esterase to degrade the polyester shells, wherein the period of time is insufficient for the esterase to cause leakage of the solution in the absence of alpha particle radiation but is sufficient for alpha particle radiation, if present, to cause leakage from the capsule composition; and (iii) observing whether leakage has occurred at the end of the period of time to determine whether alpha particle radiation is present.

A particle detector according to one embodiment includes: superconductive lines, conductive lines, insulating films, a first detection circuit, and a second detection circuit. The superconductive lines extend in a first direction and are arranged in a second direction intersecting the first direction. The conductive lines extend in a third direction different from the first direction and are arranged in a fourth direction intersecting the third direction. The insulating films are each interposed at an intersection point between one of the superconductive lines and one of the conductive lines. The first detection circuit detects a voltage change occurring in the superconductive lines. The second detection circuit detects a current or a voltage generated in the conductive lines when the voltage change occurs.

A radiation detection device includes a non-volatile memory chip including a plurality of stacked memory cells, and a controller configured to detect gamma rays incident on the non-volatile memory chip during a gamma ray detection window according to a data inversion or a threshold voltage change of at least some of the memory cells in the non-volatile memory chip during the gamma ray detection window.

This radiation analysis system comprises a transition edge sensor that detects radiation, a current detection mechanism that detects a current flowing in the transition edge sensor, and a computer sub-system that processes a current detection signal from the current detection mechanism. The computer sub-system is characterized by executing: a process for calculating a baseline current of the current detection signal; a process for calculating a wave height value of a signal pulse produced in the detection signal when the transition edge sensor has detected radiation; a process for acquiring correlation data based on the baseline current and the wave height value; and a process for correcting the wave height value of the signal pulse, or an energy value calculated from the wave height value, on the basis of the correlation data and the baseline current from before production of the signal pulse when radiation having unknown energy is detected by the transition edge sensor.

A particle detection device of an embodiment includes: a detector including a plurality of superconducting strips, and detecting a particle generated from a particle generation source; a conversion mechanism including a plurality of channels provided for the respective superconducting strips, and converting an analog signal from a corresponding one of the superconducting strips into a digital signal; an aggregation mechanism including a circuit which receives an output from the conversion mechanism; a first temperature maintaining portion maintaining a first temperature equal to or lower than a superconducting transition temperature; a first low-temperature container housing the first temperature maintaining portion; and a vacuum container housing the conversion mechanism and the first low-temperature container, and including an opening, the detector being housed in the first low-temperature container, and being connected to the first temperature maintaining portion, and the conversion mechanism being maintained at a temperature not lower than the first temperature.

A computed tomography (CT) imaging apparatus includes a radiation source configured to emit X-rays; a plurality of photon-counting detectors configured to detect X-rays emitted by the radiation source and generate a photon counting signal based on the detected X-rays; and processing circuitry to obtain a kV-waveform used by the radiation source to generate the X-rays during a scan of an object, and adjust at least one energy threshold dividing the photon counting signal into a plurality of spectra bins in accordance with the obtained kV-waveform.