Our comprehensive physics QA hardware and software includes, but not limited to, SNC Profiler ICs, PTW Octavius 729s, PTW 3D and 1D water tanks, PTW electrometers, Varian Portal Dosimetry Package, Varian MPC, Radformations ClearCheck, ClearCalc, EZfluence, and Auto Contouring packages, Sun Nuclear StereoPhan phantom with SRS MapCheck. Primary tasks include patient treatment plan checks; weekly physics chart checks, daily, monthly, and annual machine quality assurance, SRS and SBRT presence/consulting, as well as serving as a resource to the dosimetrists and physicians for special physics consultations.