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Example 3: Source modelling in RaySearch Raystation

Manual: RayPhysics Manual v4.7

Beam source: finite size

Source intensity distribution model:

2D Gaussian

Source intensity distribution parameters:

values obtained through automated

beam model optimisation procedures

The influence of variations of the primary source as projected over the pixels of

the energy fluence matrix is modelled

Geometric penumbra is modelled accounting for collimator/MLC position with

respect to the finite source size

(but not shape of the collimator jaw end?)

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