Asymmetric field calculations.
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.
Prado
K L
KL
Allison Cancer Center, Memorial Hospital and Medical Center, Midland, TX 79701.
Royce
D L
DL
D006801:Humans; D010315:Particle Accelerators; D011874:Radiometry; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy