1. ANSI/ANS-6.4.3. 1991. Gamma Ray Attenuation Coefficient and Buildup Factors for Engineering Materials American Nuclear Society, La Grange Park, IL.
2. Introduction to Radiological Physics and Radiation Dosimetry;Attix,1986
3. Berger, M.J., Hubbell, J.H., 1999. XCOM: Photon Cross Sections Database. Web Version 1.2, available at 〈http://physics.nist.gov/xcom〉, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA, August 1999. Originally published as NBSIR 87-3597, XCOM: Photon Cross Sections on a Personal Computer (July 1987) 1987–1999.
4. Monte Carlo evaluation of CTDI1 in infinitely long cylinders of water, polyethylene, and PMMA with diameters from 10 mm to 500 mm;Boone;Med. Phys.,2008
5. Introduction to Health Physics;Cember,1989