MADISON, Wis.--(BUSINESS WIRE)--TomoTherapy Incorporated (NASDAQ: TOMO), producer of the Hi·Art® treatment system for advanced radiation therapy, announced today that it will host an analyst and investor presentation in conjunction with the 50th annual ASTRO (American Society for Therapeutic Radiology and Oncology) meeting on Monday, Sept. 22, 2008, at 7:45 a.m. ET.