Method and Apparatus for Calibrating a Charged Particle Pencil Beam Used for Therapeutic Purposes

摘要

A system for calibrating a charged particle pencil beam includes a first pixelated detector, a second pixelated detector, a beam stop, and a diagnostics system. The first and second pixelated detectors measure the pencil beam at positions proximal and/or distal to an isocenter plane. The beam stop is configured to detect an energy level of the pencil beam. The diagnostics system is configured to transmit a signal to request a generation of the charged particle pencil beam at different settings. The diagnostics system is also configured to update a calibration parameter for each setting based on the data received from the pixelated detectors and the beam stop.

主权项

1. A system for calibrating a charged particle pencil beam, the system comprising:
a first pixelated detector disposed at a proximal position to an isocenter plane, the first pixelated detector configured to provide a first output representative of first data of the charged particle pencil beam; a second pixelated detector disposed at a first position distal to the isocenter plane, the second pixelated detector configured to provide a second output representative of second data of the charged particle pencil beam; and a beam stop disposed at a second position distal to the second pixelated detector, the beam stop configured to provide a third output representative of an energy of the charged particle pencil beam, wherein the second pixelated detector is disposed between the isocenter plane and the beam stop; a diagnostics system comprising a processor and a memory, the diagnostics system configured (a) to transmit a signal to request a generation of the charged particle pencil beam at a plurality of settings; and (b) to update a calibration parameter for each setting based on at least one of the first output, the second output, and the third output.