title: Estimation of peripheral dose from two linacs: Mevatron MX6700 and Mevatron KDS.
abstract: An empirical calculation method for high-energy beam peripheral dose estimation is described. The peripheral dose has been measured for a Siemens Mevatron MX6700 (6 MV) and a Siemens Mevatron KDS (6 and 18 MV) linear accelerators. The dose distribution is parameterized for each beam energy as a function of depth, distance from the edge of the field, and field size. A simple algorithm has been developed for dose calculation up to 100 cm from the field central axes. Predictions by this algorithm are compared with measurements in an Alderson phantom.
authors.affiliation: Servicio de Radioterapia, Hospital Clínico y Provincial de Barcelona, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Sánchez-Reyes
authors.forename: M
authors.initials: M
authors.lastname: Ginjaume
authors.forename: H
authors.initials: H
authors.lastname: Chakkor
authors.forename: A
authors.initials: A
authors.lastname: Melero
authors.forename: F
authors.initials: F
authors.lastname: Pons
authors.forename: X
authors.initials: X
authors.lastname: Ortega
mesh_terms: D010315:Particle Accelerators; D011879:Radiotherapy Dosage