US Patent 8039790 Phantoms and methods for verification in radiotherapy systems

Methods and phantoms for verification in radiotherapy systems. A phantom for verification in a radiotherapy system may include a body to support a detector surface for obtaining a panoramic image of individual radiation beams in the radiotherapy system. The detector surface may be positioned in an intermediate region between the one or more sources and a target isocenter of the radiotherapy system. The detector surface may at least partially surround the target isocenter.