[Gate-users] Simulating a Voxelized Phantom

[dankemori at yahoo.co.jp]

Hello dear GATE users.

I'm trying to simulate a Voxelized Phantom(Brain Phantom) in a PET system now.
I defined phantom and source according to Users Guide as follows

#  B R A I N   P H A N T O M
/gate/world/daughters/name hoffman
/gate/world/daughters/insert parameterizedBoxMatrix
/gate/hoffman/geometry/insertReader interfile
/gate/hoffman/interfileReader/insertTranslator range
/gate/hoffman/interfileReader/rangeTranslator/readTable activityRange.dat
/gate/hoffman/interfileReader/rangeTranslator/describe 1
/gate/hoffman/interfileReader/readFile hof3.h33
/gate/hoffman/placement/setTranslation 0. 0. 0. mm
/gate/hoffman/placement/setRotationAxis 1 0 0
/gate/hoffman/placement/setRotationAngle 0 deg
/gate/hoffman/attachVoxelPhantomSD

/gate/hoffman/addOutput doseOutput
/gate/output/doseOutput/saveUncertainty true
/gate/output/doseOutput/setFileName hoffman_paraDose.bin

#B R A I N 
/gate/source/addSource voxel voxel
/gate/source/voxel/reader/insert interfile 
/gate/source/voxel/interfileReader/translator/insert range
/gate/source/voxel/interfileReader/rangeTranslator/readTable activityRange.dat
/gate/source/voxel/interfileReader/rangeTranslator/describe 1
/gate/source/voxel/interfileReader/readFile hof.h33
/gate/source/voxel/interfileReader/verbose 1
/gate/source/voxel/setType backtoback
/gate/source/voxel/setAccolinearityFlag true
/gate/source/voxel/setAccoValue 0.5 deg
/gate/source/voxel/gps/particle gamma
/gate/source/voxel/gps/energytype Mono
/gate/source/voxel/gps/monoenergy 0.511 MeV
/gate/source/voxel/gps/angtype iso
/gate/source/voxel/gps/mintheta 0. deg
/gate/source/voxel/gps/maxtheta 180. deg
/gate/source/voxel/gps/minphi 0. deg
/gate/source/voxel/gps/maxphi 360. deg
/gate/source/voxel/gps/confine NULL
/gate/source/voxel/setPosition -128. -128. 0. mm
/gate/source/voxel/dump 1



But I had the following warnings:

-----------------------------------------------------------------------------------------------

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.
  Volume of the same name and copy number ("world_P", copy 0) still exists and is being used.
  WARNING: This does not necessarily guarantee it's the same
  volume you originally specified in /vis/scene/add/.
/vis/scene/notifyHandlers scene-0

PreInit> /gate/hoffman/geometry/insertReader interfile
/gate/hoffman/geometry/insertReader interfile

PreInit> /gate/hoffman/interfileReader/insertTranslator range
/gate/hoffman/interfileReader/insertTranslator range

PreInit> /gate/hoffman/interfileReader/rangeTranslator/readTable activityRange.dat
/gate/hoffman/interfileReader/rangeTranslator/readTable activityRange.dat
GateGeometryVoxelRangeTranslator::ReadFile : fileName: activityRange.dat
   GateMDBFile::ReadItem: I could not find the item '' in section [Materials] of the material database. 
   GateMaterialDatabase: could not download the definition for ''
GateMaterialDatabase: failed to read the material '' in the database file!

PreInit> /gate/hoffman/interfileReader/rangeTranslator/describe 1
/gate/hoffman/interfileReader/rangeTranslator/describe 1
 Range Translator

!!! GateMDBFile::LookForElementIndbStream:   
I could not find any section [Materials] in the material database file. 
You should check the database file.
Computation aborted!!!


*** G4Exception: Aborting execution ***
Aborted

----------------------------------------------------------------------------------------------- 



Any kind of hints or solutions to my problem are appreciated.


Thank you 

*************************
Taro Kanamaru

Tohoku University Japan

email: dankemori at yahoo.co.jp
************************* 
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