Equal surface dose compensation.

This paper investigates a method of designing and producing an unusual class of compensators. Through use of these compensators one can deliver an even dose to dmax when one is irradiating a sloping contour with a single megavoltage photon field. These compensators are designed not to provide an even dose at midplane in a patient but instead to produce what may conceptually be described as an equal surface dose. (A more accurate but less descriptive term would be equal dmax dose compensator.)