Invention Application
- Patent Title: SYSTEMS, METHODS, AND DEVICES FOR RADIATION BEAM ASYMMETRY MEASUREMENTS USING ELECTRONIC PORTAL IMAGING DEVICES
-
Application No.: PCT/EP2018/055069Application Date: 2018-03-01
-
Publication No.: WO2018158380A1Publication Date: 2018-09-07
- Inventor: ANSORGE, Reto , LEHMANN, Mathias , THIEME-MARTI, Stefan J.
- Applicant: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
- Applicant Address: Hinterbergstrasse 14 6330 Cham CH
- Assignee: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
- Current Assignee: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
- Current Assignee Address: Hinterbergstrasse 14 6330 Cham CH
- Agency: MARK FOSTER
- Priority: US15/449,586 20170303
- Main IPC: A61N5/10
- IPC: A61N5/10
Abstract:
Systems and methods for determining beam asymmetry in a radiation treatment system using electronic portal imaging devices (EPIDs) 112 without implementation of elaborate and complex EPID calibration procedures. The beam asymmetry is determined based on radiation scattered from different points in the radiation beam and measured with the same region of interest ROI of the EPID.
Information query
