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Forum: Geometry
Re: None Repeated Volumes (masume soleimaninia)
Date: 05 Feb, 2018
From: John Apostolakis <John Apostolakis>

Dear Masume,

You would not need a separate sensitive detector for each square.  You can define the Si ‘square’ as a logical volume and assign a single SD to it.  ( And define a different one for the SiO2 ’squares’. )  Each copy of this Si volume in the geometry should/could have a separate copy number.

Then you can use the copy number to store the energy deposit in a different bin of an array/vector, depending on the copy number.

The numbering scheme for the bins of the SDs would need to be a bit more involved if you use a more complicated geometry (e.g. replicas for a strip of ‘squares’ and then individual copy numbers in each volume in a strip. )  But the concept would remain.

Maybe this would not work for some particular scheme.  But I cannot think of one right now.  If so could you please explain the obstacle(s) ?

Best regards,
John Apostolakis,  EP Department, CERN

On 5 Feb 2018, at 08:12, masume soleimaninia <<>> wrote:

*** Discussion title: Geometry

Dear Experts, Hello

I want to define a repeated volume as Sensitive Volume composed of small
squares filled with Si and SiO2 and I intend to expose it with protons
and then I want to calculate the mass and the charge of generated
particles and energy deposition of them in whole volume not in each
square. I mean I don't want to define each square as sensitive detector.
would you please guide me how to define the volume? I hope I could
clarify the question.

Thanks in advanced

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