“Effect of X-Ray Radiation on Electro-Optical Characteristics of CR-39 Sheets by Using Microwave and FTIR Spectroscopy Techniques”, ANJS, vol. 15, no. 4, pp. 138–143, Dec. 2012, Accessed: Nov. 24, 2024. [Online]. Available: https://anjs.edu.iq/index.php/anjs/article/view/592