Professor of Radiation Oncology, Associate Chair for Research & Director of the Division of Radiation & Cancer Biology in the Department of Radiation Oncology. He also heads the Radiation Biology Program in Stanford’s Cancer Center, and is Director of the Cancer Biology Interdisciplinary Graduate Program. Professor Giaccia was awarded an American Cancer Society Junior Faculty Research Award and the Michael Fry Award from the Radiation Research Society for his outstanding contributions on understanding the molecular mechanisms of resistance promoted by the tumor microenvironment. Additionally, he was the recipient of the 2013 ASTRO Gold Medal. Professor Giaccia has co-authored the sixth & seventh editions of the textbook, “Radiation Biology for the Radiologist,” with Professor Eric Hall from Columbia. In addition, he is currently the “Jack, Lulu and Sam Willson Professor in Cancer Biology” at Stanford University School of Medicine.