Objective to study the relation between the field size and depth of Fw (wedgefactor) and its effect on the clinical usage.
目的研究楔形因子与照射野大小和测量深度的相关性,为临床准确使用该因子提供依据。
2
In this paper, the characteristics of wedge ring detector (WRD) are introduced. The correcting method of the responding factor is discussed theoretically, and the experimented results are given.