[gate-users] range.dat

[Mutanga Theodore]

Greetings and thanks for the answer to the post for yesterday. I had
figured out how to avoid the negative values using medcon.

Now I have my voxel phantom as unsigned integer in interfile format
converted using xmedcon but still i get the error message below and gate
aborts :


/gate/nema_vox_phant/interfileReader/readFile m001-nema.h33
'nrecognised type name 'unsigned integer
 Header read from       'm001-nema.h33'
'Data file name         'm001-nema.i33
 Nb of planes:           47
 Nb of pixels per plane: 313 243
 Pixel size:             9.766e-01 9.766e-01
 Slice thickness:        3.348e+00
 Matrix size:            3.057e+02 2.373e+02
 Data type:


'!ror: Could not open header file 'm001-nema.i33
/gate/nema_vox_phant/placement/setTranslation  0. 0. 0. mm
/gate/nema_vox_phant/placement/setRotationAxis 1 0 0
/gate/nema_vox_phant/placement/setRotationAngle 0 deg
/gate/nema_vox_phant/attachVoxelPhantomSD
PreInit>
PreInit> /gate/physics/gamma/selectRayleigh lowenergy
/gate/physics/gamma/selectRayleigh lowenergy
PreInit> /gate/physics/gamma/selectPhotoelectric standard
/gate/physics/gamma/selectPhotoelectric standard
PreInit> /gate/physics/gamma/selectCompton standard
/gate/physics/gamma/selectCompton standard
PreInit> /gate/physics/setElectronCut 1. m
/gate/physics/setElectronCut 1. m
PreInit> /gate/physics/setXRayCut 1. GeV
/gate/physics/setXRayCut 1. GeV
PreInit> /gate/physics/setDeltaRayCut 1. GeV
/gate/physics/setDeltaRayCut 1. GeV
PreInit>
PreInit> /gate/geometry/enableAutoUpdate
/gate/geometry/enableAutoUpdate
ERROR - G4Box()::G4Box(): nema_vox_phant_S
        Dimensions too small ! - 0, 0, 0

*** G4Exception : InvalidSetup
      issued by : G4Box::G4Box()
Invalid dimensions. Too small.
*** Fatal Exception *** core dump ***

*** G4Exception: Aborting execution ***
Abort
********************************************************************

Is there something wrong with my voxel phantom datatype ?

Cheers

theo









> Dear Theodore,
>
> The thing to do is to use unsigned integers for your voxelized phantom
> values.
>
> example:
>  5  ==  [nr of intervals to be defined]
>   0      0       Air        false 0.0  0.0  0.0  0.2    == [range from]
> [to] [material] [visualisation boolean] [%Red][%Green][%Blue][%Alpha]
>   6      6       Lung       false 1.0  0.0  0.0  0.2
>   6      16      Breast     flase 0.0  1.0  0.0  0.2
>   16     36      Plastic    true  0.0  0.0  1.0  0.2
>   36     200     Air        false 0.0  0.0  0.0  0.2
>
> Cheers
>
> Roel
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