Dose Course 2018_Flipping book

17

RaySearch – Algorithm – Collapsed cone

❑ Effective density basis for the TERMA calculation – implicitly transport in medium ❑ Collapsed cone implemented as dose-point of view ❑ Same effective density used during scaling of cones/pipes. ❑ …the electron stopping power is assumed to scale with the effective density i.e. they are assumed to be material dependent in the same way. o Water-like medium with a scaled mass-stopping power o This is converted to dose-in-water by the effective density ratio

❑ Thus;

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Dublin 2018