TY JOUR TI Modeling of Laboratory Animals Exposure Conditions behind Local Concrete Shielding Bombarded by 650-MeV Protons KW proton beam KW secondary radiation field KW absorbed dose KW radiation transport in a matter KW concrete shielding KW radiobiological experiment KW regolith JO Medical Radiology and radiation safety AU Ivanov, A.A. AU Krylov, A.R. AU Molokanov, A.G. AU Bushmanov, A.Y. AU Samoylov, A.S. PY 2021 IS 65 PB Federal Medical Biological Agency of Russia