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Forum: Geometry
Re: Question G4Region (Michael Douglass)
Re: None Re: G4Region (Makoto Asai)
Date: 03 Sep, 2012
From: Michael Douglass <Michael Douglass>

Hi Makoto,

Thank you for your suggestion but I don't think that will work for my current application.

The reason I am trying to set up this region configuration is so I can use the physics list from the Microdosimetry example. This physics list enables physics processes to be allocated by region.

I am using the DNA physics list for the water volumes and would like the livermore physics processes to work in the inner box which is made of gold. Since the DNA physics list does not support any material other than water, I need the livermore physics list to function in the inner gold region.

The Microdosimetery physics list uses the livermore physics list in "default region for the world" and DNA physics in the target region. I therefore need the inner gold box to be included in the "defaultRegionForTheWorld" and not be included as a daughter of the outer water box region or any other user defined region.

So what I really need is a way to get a pointer to the "Default Region for the World" (as it appears in the geant4 verbose output) region so I can add the inner water box root logical volume.

Is this possible?

Michael

On Tue, 04 Sep 2012 04:58:55 GMT, Asai, Makoto wrote:

> Hi,
> 
> You may define yet another region for your inner box.
> If you do *not* specify any property to this inner region,
> it inherits by definition all the properties from the
> default region.
> 
> Makoto
> 

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