004397AB1

Accuray Inc

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A maker of radiation therapy machines used to treat cancer. Its best-known products are the CyberKnife, a robotic system that aims high-dose radiation at tumors from many angles, and the TomoTherapy system, which delivers radiation in a spiral pattern. Founded in 1990, the company traces its roots to Stanford University, where the CyberKnife's inventor, John Adler, developed the idea of pairing a robotic arm with a linear accelerator to target tumors anywhere in the body.

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