Patent ID: 8983165
Filing Date: 2015-03-17
Classification: A61B,A61N

Abstract:
1. A method for measuring the beam profile of a generated radiation beam, the method comprising: generating a first image by receiving particles of a radiation beam in an area detector, the area detector being disposed at a first position; generating a second image by receiving particles of the radiation beam in the area detector at a second position, wherein the second position is offset from the first position in a first direction by a known distance; deriving a first set of one-dimensional beam profile measurements from the first and second image, the first one-dimensional beam profile measurements being oriented in the first direction; deriving a second set of one-dimensional beam profile measurements from the first and second image, the second set of one-dimensional beam profiles being oriented in a second direction; and correlating the first and second sets of one-dimensional beam profile measurements to form a two-dimensional beam profile map based on a selected a plurality of shared sampling points in the first and second images.