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:
Aug. 22, 2017
Filed:
Apr. 09, 2014
John M. Cameron, Bloomington, IN (US);
Alexander V. Klyachko, Bloomington, IN (US);
Keith A. Solberg, Bloomington, IN (US);
Steven E. Vigdor, Bloomington, IN (US);
John M. Cameron, Bloomington, IN (US);
Alexander V. Klyachko, Bloomington, IN (US);
Keith A. Solberg, Bloomington, IN (US);
Steven E. Vigdor, Bloomington, IN (US);
Phenix Medical LLC, Bloomington, IN (US);
Abstract
A gas scintillation detector is designed to provide in-beam absolute dose monitoring for ion beam radiotherapy treatments employing spot or raster beam scanning, especially with microsecond-scale beam pulses. Detection of prompt primary scintillation light emitted by gas molecules excited by beam passage provides electronic signals that can be processed to yield output data proportional to delivered dose up to high dose rates, and that appear quickly enough to provide feedback to influence real-time beam intensity adjustments for subsequent steps in the beam scan. When the scintillation light is collected in multiple photo-detectors, the invention is furthermore capable of measuring spot beam position with spatial resolutions of order one millimeter.