Radiation Oncology/Tomotherapy

Patients scanned across a modulated strip-beam Only one “slice” (Greek prefix “tomo-”) of the target exposed at any one time by the linear accelerator (linac) beam The three components distinctive to this modality: A collimator pair that defines the length of the strip A binary multileaf collimator whose leaves open and close during treatment to modulate the strip’s intensity A couch that scans the patient across the beam at a fixed speed the during treatment delivery