A large federal Radiation Oncology service inside the South Texas Medical Center, treating a high-volume veteran population across a fully modern therapeutic suite: Elekta linear accelerators with C-Rad/Sentinel surface guidance, IGRT with cone-beam CT, RayStation planning and Mosaiq record-and-verify, 2D/3D conformal, SRT, SBRT and IMRT/VMAT, a Siemens CT simulator, Delta4-class IMRT QA, and an ultrasound-guided HDR/LDR prostate brachytherapy program. San Antonio is the seventh-largest city in the country and still one of the most affordable major metros in Texas — no state income tax, median home prices well under the national big-city average, and established medical-center neighborhoods (Shavano Park, Stone Oak, Alamo Heights, Helotes) inside a fifteen-minute commute of the facility.