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Forum: Geometry
Re: Question Region Problem (Michael Douglass)
Date: 08 Aug, 2012
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Michael,

it is not clear to me what you mean by setting different physics-lists
by region, as this is not possible. Regions can be assigned production-cuts,
user-limits, field parameters... but not physics-lists.
To set a different region for your daughters, you just need to set a new region
and specify it as root logical volume (as specified in the documentation) once
for the logical volume of your (parameterised) daughters.

Cheers, Gabriele

On Wed, 08 Aug 2012 02:20:36 GMT, Michael Douglass wrote:
> Hello,
> I am currently trying to set-up a physics list by region in my G4
> application. The problem I am having is that when I add a root logical
> volume to my new region, the daughter volumes are also included in this
> region. Is it possible to exclude the daughter volumes from the region.
> There may be another way to solve my problem. I have many replicated
> geometries inside a water volume which is itself inside the world
> volume. I need to apply a specific physics list to the water and another
> to the replicated geometries. Whenever I try to create a new region with
> the logical volume of the replicated geometries I get a segmentation
> fault. Can anyone tell me how I can isolate my replicated geometries in
> a region of their own while excluding the water inbetween these
> geometries.
> Thank you

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1 More: Re: Region Problem   (Michael Douglass - 08 Aug, 2012)
(_ More: Re: Region Problem   (Gabriele Cosmo - 13 Aug, 2012)
(_ Question: Re: Region Problem   (Michael Douglass - 19 Aug, 2012)
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