Flexible and Energy Independent Fluorescence Radiation Fiber Film Dosimeter by Electrostatic Spinning

Doping fluorescent substances in polymer matrices has shown promising applications as radiation dose sensors. In this work, quinoline dye based polyvinyl chloride fibrous films with fiber diameters of 123 nm, 540 nm and 864 nm were obtained by electrostatic spinning. The introduction of the fiber film structure makes the fluorescent film dosimeter flexible and lightweight compared to normal solid fluorescent films and further extends the linear range of X-ray detection to 0-350 Gy. Furthermore, the dosimeter shows energy and dose rate independence, and the sensitivity of the dosimeter can be improved by the application of fiber films with thinner diameters. This flexible fiber membrane provides a candidate material for wearable visual dosimeters.