Multi-axis charged particle cancer therapy method and apparatus
First Claim
1. A method for controlling charged particles, the charged particles used to irradiate a tumor of a patient, comprising the steps of:
- extracting the charged particles from a synchrotron using an extraction foil; and
controlling the charged particles along multiple axes, said multiple axes comprising;
an energy; and
an intensity,wherein said step of controlling said energy uses timing of transmission of the charged particles through said extraction foil, andwherein said step of controlling said intensity uses current originating from said extraction foil, andwherein both said step of controlling said energy and said step of controlling said intensity occur prior to the charged particles passing through a Lamberson extraction magnet in said synchrotron during said step of extracting.
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Abstract
The invention comprises a multi-axis charged particle irradiation method and apparatus. The multi-axis controls includes separate or independent control of one or more of horizontal position, vertical position, energy control, and intensity control of the charged particle irradiation beam. Optionally, the charged particle beam is additionally controlled in terms of timing. Timing is coordinated with patient respiration and/or patient rotational positioning. Combined, the system allows multi-axis and multi-field charged particle irradiation of tumors yielding precise and accurate irradiation dosages to a tumor with distribution of harmful proximal distal energy about the tumor.
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Citations
14 Claims
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1. A method for controlling charged particles, the charged particles used to irradiate a tumor of a patient, comprising the steps of:
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extracting the charged particles from a synchrotron using an extraction foil; and controlling the charged particles along multiple axes, said multiple axes comprising; an energy; and an intensity, wherein said step of controlling said energy uses timing of transmission of the charged particles through said extraction foil, and wherein said step of controlling said intensity uses current originating from said extraction foil, and wherein both said step of controlling said energy and said step of controlling said intensity occur prior to the charged particles passing through a Lamberson extraction magnet in said synchrotron during said step of extracting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification