<HTML> <HEAD> <TITLE>Re: [Gate-users] voxel phantom</TITLE> </HEAD> <BODY> 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@yahoo.co.in> wrote: <BLOCKQUOTE>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   <HR ALIGN=CENTER SIZE="1" WIDTH="100%"> Find out what India is talking about on  - Yahoo! Answers India <http://us.rd.yahoo.com/mail/in/yanswers/*http://in.answers.yahoo.com/>    Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8.. Get it NOW <http://us.rd.yahoo.com/mail/in/messengertagline/*http://in.messenger.yahoo.com> <HR ALIGN=CENTER SIZE="3" WIDTH="95%"><TT>_______________________________________________ Gate-users mailing list Gate-users@lists.healthgrid.org http://lists.healthgrid.org/mailman/listinfo/gate-users </TT></BLOCKQUOTE><TT> </TT> -- 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@mednet.ucla.edu ---------------------------------------------------------- IMPORTANT WARNING: This email (and any attachments) is only intended for the use of the person or entity to which it is addressed, and may contain information that is privileged and confidential. You, the recipient, are obligated to maintain it in a safe, secure and confidential manner. Unauthorized redisclosure or failure to maintain confidentiality may subject you to federal and state penalties. If you are not the recipient, please immediately notify us by return email, and delete this message from your computer. ----------------------------------------------------------</BODY> </HTML>