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About

Greg Glosser is a robotics and medical physics researcher whose work sits at the compelling intersection of robotic control systems and radiation oncology. He is best known for his pioneering contributions to respiratory motion compensation in radiosurgery, addressing one of the field's most persistent clinical challenges: the movement of thoracic and abdominal tumors during patient breathing. His landmark 2000 paper on robotic motion compensation during radiosurgery has accumulated nearly 400 citations, establishing it as a foundational reference in image-guided radiation therapy and helping lay the groundwork for systems like the CyberKnife. By enabling a robotic arm to dynamically track tumors in real time, his work offered a transformative alternative to conventional approaches that relied on large safety margins, reducing collateral radiation exposure to healthy tissue. Beyond oncology, Glosser contributed meaningfully to fundamental robotics research, including the implementation of natural admittance control on industrial manipulators and analysis of Coulomb friction's detrimental effects on microgravity robotic systems. His experimental work at the Cleveland Clinic further demonstrated practical pathways for image-directed radiation therapy. Collectively, his research reflects a career dedicated to making robotic systems more precise, stable, and clinically effective — with real consequences for cancer patient outcomes worldwide.