Khanmirzaei, Mohammad Hassan, and Wan Muhamad Saridan Wan Hassan. “Assessment of Medical X-Ray Radiographic Screen-Films in Different Spatial Frequencies According To Detective Quantum Efficiency Computation: Quantum Efficiency”. International Journal of Fundamental Physical Sciences 2, no. 1 (March 31, 2012): 9-11. Accessed June 26, 2022. https://www.fundamentaljournals.org/index.php/ijfps/article/view/104.