|Message: Re: physical properties of the detector||Not Logged In (login)|
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> At the end of run, you should create a new material with the new properties,
> and then call SetMaterial() for your logical volume with the new material.
> Then do the next "beamOn 100", and so on.
It is possible to change the geometry while running an executable, but it is not simply a matter of changing the matrial of a logical volume. Much has to be prepared - energy loss tables, physics tables etc. - based on the materials involved before particles through a geometry can be simulated.
The /examples/extended/optical/wls shows how a geometry can be radically changed but this, for now, isn't any different from just changing the density of one material (and rather time consuming).
(except, you probably don't have any surface tables in your simulation).
Present thought of how to implement variable densities without having to redo the whole geometry and all of the physics tables is outlined in this presentation:
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