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Forum: Geometry
Re: Question How to create a layered detector (Francisco)
Date: 15 Apr, 2008
From: michel maire <michel maire>

User Francisco wrote:

>> Hi
>> I would like to create a silicon detector consisting in layers. I need
>> to keep information of each layer, or at least of the sensitive one, so
>> I need to have access to the logical or physical volumes, also one layer
>> has to be a sensitive detector. I need to create a sensitive detector to
>> read information about energy deposition, coordinates, hits, etc. I need
>> to define a readout geometry in order to divide the sensitive layer into
>> voxels. My layers should be different in thickness and material, but not
>> in shape. I did that by specifying different logical and physical
>> volumes and adding them together, but I read that this method creates
>> overlapping and I would get unpredictable errors in my simulation. How
>> can I do this? Can I use G4AssemblyVolume class? Is there an example to
>> do it? What is the best way to do it? 1. Replicas? 2. Parameterized
>> volumes? 3. Assembly?
>> Thanks in advance

 You may be interessed to look at examples/extended/electromagnetic/TestEm3
 see README.
 We do not use the concept of Sensitive Detector to extract informations: this technic is not mandatory in simple cases.

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1 None: Re: How to create a layered detector   (Francisco - 16 Apr, 2008)
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