1. N. Tsoulfanidis, S. Landsberger, Measurement and Detection of Radiation, 4th edition (CRC Press, 2015)
2. A.B. Chilton, J.K. Shultis, R.E. Faw, Principles of Radiation Shielding (Prentice Hall, london, 1984)
3. H. Cember, T.E. Johnson, Introduction to Health Physics, 4th edition (McGraw-Hill, New York, 2009)
4. H. Goldstien, J.E. Wikins, Calculations of the Penetration of Gamma Rays: Final Report, (Nuclear Development Associates, White Plains, NY, 1954)
5. ANSI/ANS-6.4.3, Gamma-Ray Attenuation Coefficients And Buildup Factors for Engineering Materials, (American Nuclear Society, La Grange Park, IL, 1991)