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Optimization can involve:
Beam intensity profiles
Beam weights, segment weights
Beam angles (gantry angle, couch angle)
Number of beams
Radiation energy (especially in particle therapy)
Type of radiation (photons, electrons, ...)
…
“How do we find the best solution among the millions of combinations
of these parameters, which result in an optimal/adequate coverage of
the target and sparing of OAR?”
The inverse problem
“Independent” variables
?