John H. Hughes

Compact Particle Acceleration Corp. develops and commercializes compact intensity-modulated proton therapy systems. It systems are powered by the dielectric-wall accelerator (DWA), a revolutionary proton accelerator that will have a substantially smaller structure and greater flexibility than other accelerators. The firm’s proton therapy systems significantly reduce the amount of damage to adjacent healthy tissue that often occurs with traditional photon radiation methods. The company was founded in 2008 and is headquartered in Livermore, CA.

TomoTherapy, Inc. manufactures and provides radiation treatment systems for advanced radiation therapy. It provides radiation treatment services for cancer patients with its TomoTherapy Hi·Art System, which changes the intensity of the radiation beam so that it adapts to the shape of the tumor. The firm's system focuses on killing cancer cells while sparing healthy tissue. The company was founded by Thomas Rockwell Mackie and Paul J. Reckwerdt in 1997 and is headquartered in Madison, WI.