Patent ID: 8890100
Filing Date: 2014-11-18
Classification: A61N,G21K

Abstract:
1. An assembly comprising: a body, one or more collimators supported by the body, each of the one or more collimators having a through hole configured to define a shape or size of a treatment beam having a beam centerline, one or more photon flattening filters supported by the body, and one or more electron scattering foils supported by the body, wherein said one or more collimators and said one or more photon flattening filters are positioned in a circular or arc configuration having a first radius, and said one or more electron scattering foils are positioned in a circular or arc configuration having a second radius different from the first radius; and a first axis operable to move the body, and a second axis operable to move the body, wherein said first axis is a linear axis operable to translate the body and said second axis is a rotational axis operable to rotate the body about a line parallel to the beam centerline, wherein the first and second axes are operable to align one of the one or more collimators, photon flattening filters, or electron scattering foils with the treatment beam.