Journal of Mineral and Material Science
[ ISSN : 2833-3616 ]
Enhancing Photon Detection Sensitivity in PM-355 Detectors Using a Continuous-Wave IR Laser for Dosimetric Applications
1Department of Physics, College of Science, Taibah University, Madinah, Saudi Arabia
2Physics Department, Faculty of Education, Alexandria University, Alexandria, Egypt
3Students at School of Medicine, University of Jordan, Amman, Jordan
Corresponding Authors
Keywords
Abstract
Poly (Allyl Diglycol Carbonate) (PADC) solid-state nuclear track detectors are widely used in radiation detection measurements. PM-355 is a commercial type pf PADC which is often optimized for better sensitivity and research applications. Our research described here is to study the feasibility of enhancing the optical properties via chain crosslinks to be used in radiotherapy quality assurance. This is due to their tissue-equivalent properties, chemical stability, and sensitivity to ionizing radiation. However, improving their photon detection sensitivity remains essential for achieving higher accuracy in clinical dose verification. In this work, laser irradiation (at exposure times ranging from 5 to 30s) is used as a treatment technique to enhance the photon detection sensitivity of PM-355 detectors. Controlled laser exposure was applied to modify the optical and structural properties of the detector material. The induced changes were systematically characterized through optical band gap analysis measurements, and colorimetric evaluation. Optical absorption spectra revealed variations in the optical band gap, indicating laser-induced modification of electronic states within the PM-355 matrix. Observable color changes provide a qualitative indicator of laser-enhanced effects. The results demonstrate that laser irradiation can effectively tailor the optical properties of PM-355 detectors, leading to improved photon sensitivity. T his enhancement demonstrates potential for optimizing PM-355-based detectors in radiotherapy quality assurance applications, offering a simple and non-destructive approach for performance improvement.
