MADISON, Wis.--(BUSINESS WIRE)--TomoTherapy Incorporated (NASDAQ:TOMO), maker of the TomoTherapy® Hi·Art® treatment system for advanced radiation therapy, announced today that it has issued a Treatment Quality Challenge. TomoTherapy will award $250,000 to any U.S. cancer center that demonstrates its ability to beat the quality of a TomoTherapySM treatment plan using the new RapidArc™ product from Varian Medical Systems.