Leuco-Based Composite Resin Dosimeter Film.

Area of Science:

• Materials Science
• Radiation Detection
• Polymer Chemistry

Background:

• Accurate measurement of X-ray exposure doses is crucial for various applications.
• Existing radiochromic dosimeters have limitations in visualization and sensitivity.
• Development of new dosimeter materials is essential for improved radiation monitoring.

Purpose of the Study:

• To develop a novel polystyrene-based composite resin dosimeter (CRD) film.
• To enable visualization of X-ray exposure doses through a distinct color change.
• To evaluate the potential of the CRD film as an alternative to current dosimeters.

Main Methods:

• Fabrication of a composite resin dosimeter film using polystyrene (PS) as a base.
• Incorporation of Black305 fluoran leuco dye, YAP:Ce scintillator, and MBTT photoacid generator.
• Testing the film's response to X-ray exposure doses within the 18-170 Gy range.

Main Results:

• The developed CRD film exhibited a color change from yellow to black, correlating with X-ray exposure dose.
• The film demonstrated sensitivity in the 18-170 Gy range.
• Controlling thermodynamic parameters allowed for tuning the color change sensitivity of the dosimeter.

Conclusions:

• The developed Black305/YAP:Ce/MBTT/PS composite resin dosimeter film is effective for visualizing X-ray exposure doses.
• This CRD film offers a promising and potentially advantageous alternative to existing radiochromic dosimeters.
• The material's tunable sensitivity presents opportunities for customized radiation measurement applications.