An ordering structure scintillator of scintillator and fabrication method is disclosed. The ordering structure scintillator of scintillator comprises: a tubular template, which consists of a plurality of thin film oxidized metal tubes; a plurality of scintillators, filled in the thin film oxidized metal tubes; and a package layer, formed on the surface of the tubular template for protecting the tubular template. In addition, through the fabrication method, the ordering structure scintillator of scintillator can be made by anodic treatment and die casting technology with low cost and rapid production; moreover, the film oxidized metal tubes of the tubular template can be further manufactured to nano tubes by adjusting electrolyte composition, electrolysis voltage, and processing time of anodic treatment, and the aperture size, the thickness and the vessel density of the nano tube can be controlled and ranged from 10 nm to 500 nm, 0.1 m to 1000 m, and 10.sup.8 to 10.sup.12 tube/cm.sup.2, respectively.

A device to measure radioactivity of a radioembolization material including a container 110 to receive the radioem- bolization material; and a dosimeter 140 that measures the radioactivity of the radioembolization material in the container while the radioembolization material is being administered to a patient.

In one aspect, a radiation detector is disclosed, which includes a substrate having a plurality of microcapillary channels, and a crystalline scintillator material disposed in said channels so as to generate a plurality of independent radiation sensing elements associated with each channel for detecting incident radiation and generating an optical radiation in response to the detection of the incident radiation. In some embodiments, the incident radiation can include any of alpha (), beta (), gamma (), X-ray and neutrons.

A particle alpha radiation sampler includes a scintillation cell, a Geiger counter for measuring the incidence of particle alpha radiation on the scintillation cell, a vessel defining a chamber, at least one inertial impactor, a filter, and a vacuum pump. The scintillation cell is configured to receive alpha radiation passing through air in the chamber from particulate matter collected on the filter. The inertial impactor is configured to allow passage of particles only at or below an established size threshold into the chamber. The filter is configured to collect particulate matter from the air in the chamber drawn through the inertial impactor. Finally, the vacuum pump is configured to draw air flow through the filter from the chamber and to draw air flow through the inertial impactor into the chamber.