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Example 4: Source modelling in Varian Eclipse
Manual: Eclipse Algorithms Reference Guide v13+
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Beam source: point source
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Effective source intensity distribution model:
2D Gaussian
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Effective Source distribution parameters:
tuning parameters during the beam configuration
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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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