[gate-users] voxelized phantom

[Richard Taschereau]

Hi Uday,

I suggest you use the paramaterizedBoxMatrix instead.  This type of
voxellized phantom is available in the most recent release of GATE and
better supported by GEANT.  In order to use it, you need to change two
things (hilighted in blue) in your script:

        /gate/world/daughters/name ncat
> /gate/world/daughters/insert parameterizedBoxMatrix
> /gate/ncat/geometry/insertReader image
> /gate/ncat/imageReader/insertTranslator range
> /gate/ncat/imageReader/rangeTranslator/readTable range.dat
> /gate/ncat/imageReader/rangeTranslator/describe 1
> /gate/ncat/imageReader/readFile myo_atn.dat
> /gate/ncat/attachVoxelPhantomSD

Good luck,
Richard

On 10/7/05 11:12 AM, "Uday Tipnis" <ujt at ufl.edu> wrote:

> 
> Hi,
> 
> I'm trying to use a voxelized phantom in Gate and am experiencing some
> problems. Following is the macro I use to define the phantom:
> 
> /gate/world/daughters/name ncat
> /gate/world/daughters/insert replicaMatrix
> /gate/ncat/geometry/insertReader image
> /gate/ncat/imageReader/insertTranslator range
> /gate/ncat/imageReader/rangeTranslator/readTable range.dat
> /gate/ncat/imageReader/rangeTranslator/describe 1
> /gate/ncat/imageReader/readFile myo_atn.dat
> /gate/ncat/attachPhantomSD
> 
> I'm simulating a cylindricalPET system and all commands are accepted and
> no warnings/errors are issued as Gate runs. But "gateCoincidences.dat"
> remains empty. If I comment out the above macro, I get coincidences as
> expected. I have added some new materials to the "GateMaterials.db" file
> but they are accepted by Gate and don't seem to be a problem. Anyone who
> has used a voxelized phantom successfully, please help.
> 
> Thanks in advance,
> 
> Uday
> 
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> gate-users at lphe1pet1.epfl.ch
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-- 
Richard Taschereau, Ph.D.
CRUMP Institute for Molecular Imaging
University of California Los Angeles
700 Westwood Plaza A438
Los Angeles, CA 90095-1770
Phone: (310) 794-1839
Fax:     (310) 206-8975
email: RTaschereau at mednet.ucla.edu


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