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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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