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Multi-axis charged particle cancer therapy method and apparatus

  • US 8,901,509 B2
  • Filed: 05/21/2009
  • Issued: 12/02/2014
  • Est. Priority Date: 05/22/2008
  • Status: Active Grant
First Claim
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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:

  • 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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