Convenient real-time radiation monitoring and measurement device using phosphate glass with aluminum impurities

A compact, convenient dosimeter device for a convenient dose-distribution profiling tool were developed using aluminum-enriched phosphate glass. The composition of the phosphate glass were modified by adding an additional 0.2 mol % aluminum impurity, which allowed the phosphate glass to be used as a real-time scintillator with broadband radioluminescence under various types of radiation exposure, including X-rays, without large build-up effects. Real-time radiation monitoring was accomplished on a submillimeter scale by using aluminumenriched phosphate glass beads. Ion beam analysis confirmed that the aluminum-enriched phosphate glass contained no heavy elements. Optical fiber dosimetry based on the aluminum-enriched phosphate glass was demonstrated, and stable radioluminescence was visualized under X-ray irradiation.