The routine use of graphic data handlers in a radiotherapy department

Graphic data handlers are helpful in routine dosimetry. The authors describe a computer program using a graphic digitizer which facilitates determination of the equivalent square of an irregularly shaped field. The digitizer can also be used together with an incremental plotter to produce patterns by which Styrofoam molds can be cut for field-defining blocks. Both programs are designed to be used at a remote time-sharing computer station.