Diapositive 1

Eclipse from Varian

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For the lateral scaling, a discretization in 16 perpendicular directions is used

and for each an equivalent path length is determined.

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While the variable lateral scatter considerations improve the algorithm

performance in lung, it does not change the fact that the medium is still

uniformly considered water-equivalent and the dose is thus reported to

water.

❑

Different heterogeneities can be modified as scaled water, thus

Dublin 2018

Equations from Varian’s Eclipse Physics course