Method and Apparatus for Using a Multi-Layer Multi-Leaf Collimator as a Virtual Flattening Filter

• Main Authors: Miettinen, Mika, Lee, Mu Young, Hannibal, Ross B
• Format: Patent
• Language: English
• Published: 03.08.2023
• Subjects: DIAGNOSIS; ELECTROTHERAPY; GAMMA RAY OR X-RAY MICROSCOPES; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; IRRADIATION DEVICES; MAGNETOTHERAPY; MEDICAL OR VETERINARY SCIENCE; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PHYSICS; RADIATION THERAPY; SURGERY; TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOTOTHERWISE PROVIDED FOR; ULTRASOUND THERAPY

A photon source emits a flattening filter-free photon beam. A control circuit operably couples to a multi-layer multi-leaf collimator that is disposed between the photon source and a treatment area of a patient. The control circuit automatically arranges operation of some, but not all, of the layers...