title: Asymmetric field calculations.
abstract: A simple method for performing manual dose calculations in asymmetric fields is proposed. The method is based on a generalized central-axis dose calculation equation for which open- and wedged-field off-axis provisions have been made. A calculation form designed to document the calculation and simplify the calculation process is presented. Lastly, the required off-axis dosimetry data obtained from a dual-energy accelerator are shown.
authors.affiliation: Allison Cancer Center, Memorial Hospital and Medical Center, Midland, TX 79701.
authors.forename: K L
authors.initials: KL
authors.lastname: Prado
authors.forename: D L
authors.initials: DL
authors.lastname: Royce
mesh_terms: D006801:Humans; D010315:Particle Accelerators; D011874:Radiometry; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy