PALO ALTO, Calif., Oct. 14, 2019 /PRNewswire/ -- Varian (NYSE: VAR) in collaboration with Cincinnati Children's Hospital Medical Center/University of Cincinnati Medical Center Proton Therapy Center announced the achievement of a significant milestone in the path towards clinical trials of FLASH therapy*. The combined research team utilized a Varian ProBeam® proton therapy gantry treatment room in research mode to successfully complete a FLASH delivery to a phantom target. This test is the world's first lung SBRT FLASH delivery using a proton system.