Dosimetry of effective wedge fields produced by an internal wedge.

摘要: A procedure is described to calculate the monitor unit ratios required produce effective wedge fields having a desired angle by combining an internal 60° with open field. Complementary procedures are derived and demonstrated for calculating dose distributions angles of 15°, 30°, 45° using central axis depth data off‐axis field wedged Measurements at five points on off within each measurements factor that calculated were correctly delivered 2% in all cases.