Rare-earth doped radioluminescent hydrogel as a potential phantom material for 3D gel dosimeter

Abstract Cancer prevention and treatment are currently the focus of most research. Dose verification is an important step for reducing improper dose deposition during radiotherapy. To mend traditional gel dosimeters 3D verification, a novel rare-earth nanoparticle-based composite was prepared, which has good radioluminescence property reusability. It promising phantom material new dosimeter. TEM, DLS, FT-IR, TGA, spectrofluorometer were used to determine chemical structure, micromorphology, optical performance. Compared dosimeters, linear relationship between light intensity excited by X-ray tube current. Furthermore, it may measure distribution immediately in situ , reduces errors saves time. This work provides idea research promotes safe effective use