Versatile, efficient and effective radiotherapy for the range of radiation oncology patients.

Image-guided radiation therapy (IGRT) and intensity-modulated radiation therapy (IMRT) featuring integrated 3D image guidance, and highly conformal treatments enabled by a unique binary MLC.

Personalized, precise radiotherapy cancer treatment — for the full spectrum of radiation oncology patients.

The TomoTherapy® System is among the most revolutionary radiotherapy innovations in the history of cancer treatment, completely redefining the standard for individualized and precise treatment of tumors anywhere in the body — while creating a new paradigm for patient comfort and quality of life. The first truly complete IGRT/IMRT solution, TomoTherapy combines integrated CT imaging for exceptional treatment accuracy with a first-of-its-kind helical treatment delivery platform that uses patented beam-shaping technology to precisely target tumors while minimizing impact on surrounding healthy tissue. Ongoing investment in radiotherapy innovation enhances the trusted and proven platform, as Accuray continues to elevate imaging and beam-shaping capabilities to new levels.


Making more precise treatments available for more patients.


Efficient treatment delivery regardless of the tumor’s complexity.


Maximizing delivery precision to minimize side effects.

Meet the TomoTherapy® System

Watch precision, versatility and efficiency come to life.

First Demonstration of TomoTherapy’s Superior Clinical Outcomes over RapidArc

Read about the clinical outcomes when treating head and neck cancer with TomoHelical and RapidArc systems.

Driving Critical Change for Patients and Practices

Increase Patient Satisfaction

Fully integrated CT imaging enables IGRT/IMRT and 3D CRT with a uniquely seamless workflow that allows clinicians to focus on patients first. The unique helical treatment delivery technology and beam-shaping multileaf collimator (MLC) empowers treatment teams to confidently deliver precise radiation therapy anywhere in the body.

Maximize Patient Comfort

The advanced binary multi-leaf collimator provides independent intensity modulation for thousands of “beamlets” for every individualized patient plan. This innovative beam-shaping technology ensures radiation conforms to the patient’s tumor and minimizes unwanted dose to surrounding healthy tissue.

Proven Platform

Numerous peer-reviewed publications and clinical studies demonstrate what many leading centers already know: the TomoTherapy System excels for a wide range of clinical indications.

Promote Practice Success

Expand treatable population and deliver highly personalized treatments for the entire spectrum of radiation therapy — from the simplest indications to the most complex cases, anywhere in the body — on a single platform. Enhanced user workflows streamline treatment planning and delivery, enabling practices to provide more precise treatments to more patients, in less time.

Connect with a TomoTherapy expert.

Get the answers you need.

Unmatched service to protect uptime and maximize ROI

Industry-leading service to support your ongoing success, from speedy install and optimization, to proactive monitoring and unrivalled on-site service, to smart upgrade paths to keep your system at the leading edge.

Redefining the future of cancer care

Learn how Accuray radiation technologies enable clinicians to get patients back to living their lives, faster. Explore coming innovations that unlock entirely new possibilities.

Treatment Centers

About Accuray

Accuray is expanding radiation therapy: our products can deliver it accurately, precisely and effectively, from oncology to neuro-radiosurgery and beyond.