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:
Jul. 21, 2009
Filed:
Feb. 17, 2006
Dieter Manthey, Clayton, CA (US);
Dave Pond, Novato, CA (US);
Johannes Stahl, Walnut Creek, CA (US);
Ricardo Ahumada, Martinez, CA (US);
Dieter Manthey, Clayton, CA (US);
Dave Pond, Novato, CA (US);
Johannes Stahl, Walnut Creek, CA (US);
Ricardo Ahumada, Martinez, CA (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
A system and method for capturing a portal image using a linear accelerator having a multi-leaf collimator (MLC) and an imager allows the portal image field to be automatically clipped using the multi-leaf collimator so that the projection of the portal image field onto the imager falls within the allowed image area of the imager. In this manner, portal images may be obtained in instances where the projection of the portal image field onto the flat-panel imager is larger than an allowed image area of the imager, or where the projection of the portal image field onto the imager is not centered and would extend beyond the allowed image area, so that radiation sensitive electronics outside of the allowed image area are protected from undesirable exposure to radiation.