[Gate-users] Problem with ecat7 output

[ernesto at savantic.se]

Dear GATE users,

I am using:

Fedora core 3
gcc 3.4
geant4.8.1.p01
clhep 1.9.2.2
gate_v3.0.0

I have a problem similar to the one Nicolas Sakellios had in an e-mail to this
list on March 30, 2005. I’ve just installed the Ecat7 library using the file
ecat.tar.gz from the site of GATE Collaboration. I followed the installation
instructions and after sourcing I got the message:
Use of ECAT7 data output enabled

However, if I type the command
/gate/output/describe

I get:

Number of output modules inserted: 5
Description of the single modules:

Output module: ‘fastanalysis’

Output module: ‘analysis’

Output module: ‘digi’

Output module: ‘ascii’

Output module: ‘root’

And when I run the simulation example PET_Ecat_System.mac  the end of the screen
output is:

Output module: 'ecat7'
 >> Job:                   write a set of 2D sinograms into an Ecat7
output file
 >> Is enabled ?           Yes
 >> File name:             yourSinogram.S
 >> Attached to system:    systems/ecat
GateSourceMgr::ListSources: List of the sources in the source managaer
Source --------------> F18CylinderSource
  ID                 : 0
  type               : 
  activity (Bq)      : 10000
  startTime (s)      : 0
  time (s)           : 0
  forcedUnstable     : 1
  forcedHalfLife (s) : 6586
  verboseLevel       : 0
---------------------- 

Time set to (s) 0
G4PhysicalVolumeModel::Validate() called.
  Volume of the same name and copy number ("world_P", copy 0) still
exists and is being used.
  Be warned that this does not necessarily guarantee it's the same
  volume you originally specified in /vis/scene/add/.
 >> entering [GateToSinogram::RecordBeginOfAcquisition]
    Acquisition start time: 0
    Number of frames: 1
    Number of crystals per crystal rings: 576
    Number of crystal rings:              32
    Number of radial sinogram bins:    288
    Number of azimuthal sinogram bins: 288
    Crystal location blurring in tangential direction: 1.8 mm
    Crystal location blurring in axial direction: 1.8 mm
    Prompt coincidences are recorded in data = 0
    Delayed coincidences (if simulated) are recorded in data = 1
    True scattered coincidences (eventID1 = eventID2) are recorded in data = 4
 >> leaving [GateToSinogram::RecordBeginOfAcquisition]
 >> entering [GateSinoToEcat7::RecordBeginOfAcquisition]
    Number of crystal rings: 32
    crystal axial pitch: 4.85 mm
    crystal transverse pitch: 4.4942 mm
Gate: symbol lookup error: root/geant4/tmp/Linux-g++/Gate/libGate.so: undefined
symbol: matrix_create

And the simulation crashed. Does anybody have any suggestions?

Best regards,

Ernesto Fumero