The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Nov. 27, 2017
W. Davis Lee, Newburyport, MA (US);
Scott Penfold, Charlestown, MA (US);
Mark R. Amato, South Hamilton, MA (US);
Louis P. Wainwright, Lynnfield, MA (US);
W. Davis Lee, Newburyport, MA (US);
Scott Penfold, Charlestown, MA (US);
Mark R. Amato, South Hamilton, MA (US);
Louis P. Wainwright, Lynnfield, MA (US);
Other;
Abstract
The invention comprises a method and apparatus for determining state of a positively charged particle, such as a proton, for use in imaging a tumor of a patient prior to and/or concurrent with cancer therapy. The imaging system comprises: (1) a beam transport path of the positively charged particle sequentially passing through a patient, through a first time of flight detector, and, after traversing a pathlength, at least into a second time of flight detector and (2) a beam state determination system using elapsed time between detection at the first and second time of flight detectors and the pathlength to determine a residual beam energy, which, when compared to a known incident beam energy, is used in generation of an image of the tumor. An optional beam energy degrading element increases time differences between the time of flight detectors.