title: Effects of collimator jaw setting on dose output for treatments with multileaf collimator.
abstract: The variations in dose output with collimator jaw setting have been investigated for treatment fields shaped by a multileaf collimator. Measurements have been made for 6 and 15 MV x-ray beams on a Varian Clinac 2100C machine. The results of our study show that the collimator jaw settings can affect the dose by about 5% for a small field shaped by a multileaf collimator. The effect is smaller for larger fields.
authors.affiliation: Department of Radiation Oncology, SUNY, Health Science Center, Syracuse, NY 13210, USA.
authors.forename: S C
authors.initials: SC
authors.lastname: Prasad
mesh_terms: D006801:Humans; D008961:Models, Structural; D011878:Radiotherapy / Q000295:instrumentation / Q000379:methods*; D011879:Radiotherapy Dosage