Emory's Department of Radiation Oncology serves multiple clinical institutions in the Atlanta metropolitan area, including the Emory Proton Therapy Center, which offers pencil beam scanning and is one of the busiest large proton centers in the country, as well as the Emory University Hospital Clifton, Winship Cancer Institute at Emory Midtown, Emory Saint Joseph's Hospital, Grady Hospital, and Emory Decatur Hospital. Highlights of the technology offered include 9 Varian linear accelerators, 1 Halcyon unit, 2 Elekta linear accelerators, a multi-room proton center, Gamma Knife, multiple brachytherapy HDR afterloaders, large bore CT scanners with 4D capabilities, and access to MR and PET scanners including two dedicated 1.5 T MRI scanners.