Varian 2100C/D Clinac 18 MV photon phase space file characterization and modeling by using MCNP Code Ahad Ollah Ezzati Eur. Phys. J. Plus, 130 7 (2015) 150 Published online: 28 July 2015 DOI: 10.1140/epjp/i2015-15150-1
