[Gate-users] voxel phantom

[Richard Taschereau]

Dear Sweta,

There is nothing wrong with your setup.  The message you see in the phantom
description (Material Vaccum) applies to the virtual envelope of the phantom
(the box) and is irrelevant.  The actual material of each voxel is
determined by the value in the phantom description file.

Richard

On 11/30/06 4:09 AM, "S G" <sweta_indbhavan at yahoo.co.in> wrote:

> Dear Richard and all,
>   
>  
>   
> The GateMaterials.db seems to be fine. This is the output from GATE when I
> describe the phantom:
>   
> I even tried setDefaultMaterial as Air in Phantom!
>   
> ------------
>   
> PreInit> /gate/world/daughters/name Phantom
> /gate/world/daughters/name Phantom
> PreInit> /gate/world/daughters/insert parameterizedBoxMatrix
> /gate/world/daughters/insert parameterizedBoxMatrix
> GateVoxelBoxParameterizedInserter::ConstructGeometry - Warning !
> ConstructGeometry called without a reader
> world_L is registered to the default region.
> PreInit> /gate/Phantom/geometry/insertReader image
> /gate/Phantom/geometry/insertReader image
> GateVGeometryVoxelReader::GateVGeometryVoxelReader: m_voxelTranslator 0
> PreInit> /gate/Phantom/imageReader/insertTranslator range
> /gate/Phantom/imageReader/insertTranslator range
> GateVGeometryVoxelReaderMessenger::SetNewValue: newValue (translatorType) :
> range
> PreInit> /gate/Phantom/imageReader/rangeTranslator/readTable
> voxelPhantom_range.dat
> /gate/Phantom/imageReader/rangeTranslator/readTable voxelPhantom_range.dat
>   
> PreInit> /gate/Phantom/imageReader/rangeTranslator/describe 1
> /gate/Phantom/imageReader/rangeTranslator/describe 1
>  Range Translator
>  Range   0 : imageValue in [    0.000e+00 , 1.000e+00 ]  ---> material Air,
> visibility 1, coulour (5.000e-01,0.000e+00,0.000e+00,1.000e+00)
>   
> PreInit> /gate/Phantom/imageReader/readFile voxelPhantom_ascii.dat
> /gate/Phantom/imageReader/readFile voxelPhantom_ascii.dat
> GateSourceVoxelImageReader::ReadFile : fileName: voxelPhantom_ascii.dat
> nx ny nz: 1 1 1
> dx dy dz: 1.000e+01 1.000e+01 1.000e+01
> world_L is registered to the default region.
> PreInit> /gate/Phantom/imageReader/setDefaultMaterial Air
> /gate/Phantom/imageReader/setDefaultMaterial Air
>   
> PreInit> /gate/Phantom/describe
> /gate/Phantom/describe
> -----------------------------------------------
>   
> GATE object:        'Phantom'
> Is enabled?         Yes
> Is the whole world?         No
> Number of physical volumes: 1
> Total volume:          1.000e+00 cm3
>   
>  GATE object:        'Phantom'
>  Shape:          box
>  Length along X: 1.000e+00 cm
>  Length along Y: 1.000e+00 cm
>  Length along Z: 1.000e+00 cm
>  Material:              'Vacuum'
>  Total volume:          1.000e+00 cm3
>  Visibility attributes: visible,
> Colour=(5.000e-01,5.000e-01,5.000e-01,1.000e+00), wireframe
> Nb of children:        1
>  child: 'PhantomVoxel'
>   
> Nb of moves:       1
>   
>  GATE object:        'Phantom/placement'
>  Is enabled?         Yes
>  Move type:     placement
>  Translation:       0.000e+00 0.000e+00 0.000e+00 fm
>  Rotation axis:     (0.000e+00,0.000e+00,0.000e+00)
>  Rotation angle:    0.000e+00 deg
>   
> Nb of repeaters:       0
> -----------------------------------------------
>   
> 
> Also, before start of simulation I get the materials listed with densities
>   
>  
>   
> ***** Table : Nb of materials = 5 *****
>   
>  
>   
> Regards,
>   
> Sweta
>  
> 
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-- 
Richard Taschereau, Ph.D.
CRUMP Institute for Molecular Imaging
University of California Los Angeles
700 Westwood Plaza A222
Los Angeles, CA 90095-1770
Phone: (310) 825-0697
Fax:     (310) 206-8975
email: RTaschereau at mednet.ucla.edu



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