The working system is capable of delivering precise intensity modulated proton therapy (IMPT) using pencil beam scanning technology.

Varian Medical Systems vice president of Emerging Businesses Lester Boeh said with this clearance, they have reached a milestone in the development of the Varian Particle Therapy (VPT) business and technology.

"Our scanning beam IMPT technology combines a high quality of care with the potential for higher patient throughput and improved cost efficiency, and we believe it will improve the economics and effectiveness of proton therapy," Boeh said.

Varian said IMPT technology gives clinicians more options for delivering dose more precisely in order to spare more healthy tissue in the course of delivering treatments.

Varian’s scanning beam technology enables IMPT by modulating dose levels on a spot-by-spot basis throughout the treatment area.