B. M. Alshabander, “Calculation the mass attenuation coefficient of beta-particles through Polyvinyl chloride”, IJP, vol. 8, no. 12, pp. 50–53, Nov. 2010, Accessed: Mar. 31, 2025. [Online]. Available: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/847