Accuray Inc.

Warren Kilby

Petr Jordan

Calvin R Maurer, Jr

John Noll

John W Allison

Gopinath Kuduvalli

Jay Bailey West

Michael J Saracen

John Robinson Dooley

James Y Wang

Derek Olender

A method of calibration in a radiation delivery system. The method including acquiring, using a camera, an image of a radiation beam incident on a phantom, wherein the radiation beam being emitted by a radiation source of the radiation delivery system and the phantom comprising an X-ray luminescent material. The method further including determining a beam pointing offset based on the image. The method further including calibrating a position of the radiation source of the radiation delivery system based on the beam pointing offset and a relative position of the camera with respect to a beam axis of the radiation beam.

Radiation based treatment beam position calibration and verification

A phantom, calibration system and calibration method are described. The phantom having a phantom body and an X-ray luminescent material, wherein at least a portion of the X-ray luminescent material is on a surface of the phantom.

A phantom is described. The phantom having a spherical phantom body and an X-ray luminescent material, wherein at least a portion of the X-ray luminescent material is on a surface of the phantom.

A method is described, including acquiring, using a camera, an image of a radiation beam incident on a phantom, the radiation beam being emitted by a radiation source. The method further includes determining a beam pointing offset based on the image and calibrating a position of the radiation source based on the beam pointing offset. A calibration system is described including the phantom, the camera, and a processing device. A phantom having an X-ray luminescent material is also described.

An apparatus and method for optimizing a workspace of a radiation treatment delivery system. An optimized treatment plan is generated for delivering a dose of radiation to a volume of interest ('VOI') in a patient using fewer changes to a treatment plan parameter during delivery of the dose of radiation then available to a radiation treatment delivery system. The optimized treatment plan limits a number of adjustments to the treatment plan parameter during delivery of the dose of radiation. Prior to delivery, the optimized treatment plan is analyzed to determine whether a quality of the optimized treatment plan is acceptable.

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Sunnyvale, CA, United States of America

Warren Kilby