Radiation shielding, shielded SmartDoor™ systems and pre-packaged modular radiotherapy facilities for temporary or permanent installation. Constructing RT facilities for proton, linac and HDR for all machine types, energies and modalities. Stackable modular VeriShield™ high density shielding features 100% guaranteed attenuation effectiveness. VPAC™ shielding packs reduce construction time and unique engineered shielding designs provide a proven alternative to mass-concrete construction. (less)