Beamline control and security system for a radiation treatment facility

  • US 5,895,926 A
  • Filed: 11/03/1997
  • Issued: 04/20/1999
  • Est. Priority Date: 02/15/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. In a radiation beam therapy system comprising a radiation beam source, a plurality of radiation beam treatment locations, and a multiplexed switchyard and beam transport system for directing the radiation beam to a selected one of the radiation beam treatment locations, a method of radiation beam security comprising the steps of:

  • (a) receiving a beam request signal from a selected treatment location;

    (b) deriving a beam path configuration signal from said beam request signal indicative of a selected beam path for said radiation beam from said source to said selected treatment location;

    (c) selecting the switchyard and beam transport system configuration in accordance with said beam path configuration signal by enabling a first set comprising of less than all of a plurality of switchyard and beam transport elements to provide a path for transport of said radiation beam to said selected treatment location;

    (d) sensing the configuration of the switchyard and beam transport system to verify that (i) all of said first set of elements of the switchyard and beam transport elements are enabled so that the switchyard and beam transport system configuration allows radiation beam transport to said selected treatment locations along said selected beam path and (ii) all of the elements of said plurality of elements not in said first set are not enabled so that the switchyard and the beam transport system configuration does not allow radiation beam transport along a non-selected beam path of said plurality of beam paths; and

    (e) in response to step (d), providing radiation beam transport to said selected treatment location.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×