How to: Actors and Filters
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The "Actors" are scorers that can store information during simulation, such as dose map or phase-space (like a "tally" in MCNPX). They can also be used to modify the behavior of a simulation, such as the `KillActor` that allows stopping tracking particles when they reach some defined regions. This is why they are called "actors" rather than "scorers".

The list of actors is here: :ref:`actors-label`.