At head of title: Radiation Protection Division ; Health Protection Agency.
An MCNP-4C2 determination of gamma source shielding : the transmission of 0.511 MeV and 0.662 MeV photons through concrete, lead and iron by J. Eakins. ISBN 9780859516037. Published by HPA Centre for Radiation, Chemical and Environmental Hazards in 2007. Publication and catalogue information, links to buy online and reader comments.