TomoTherapy to be sold to California company

Accuray announced early Monday that it plans to buy TomoTherapy in a $277 million deal, or $4.80 a share in cash and stock. Accuray, founded in 1990, makes the CyberKnife, a robotic radiation therapy device developed at Stanford University that shoots radiation beams at tumors from a variety of angles. TomoTherapy, established in 1997 based on technology with UW-Madison roots, has a Hi-Art system that spirals around a patient firing radiation beams at cancerous tissue. (WISCONSIN STATE JOURNAL, 3/8)