[Gate-users] Gate on PC and cluster

yawen zheng zhengyawen2408 at gmail.com
Fri Sep 10 08:58:00 CEST 2010


 Dear Users,
I simulated a cylindrical PET system using cylindrical source
(back-to-back gamma) at the center of the detector for the simple
study.The cylindrical PET
was based on GE DLS PET,and with cylindrical phantom filled with
aluminium.I ran it on PC with virtualbox (ubuntu system) and cluster.
PC is 32-bit machine
while cluster is 64-bit.



Here are the results with phantom or without phantom ,on PC or on
cluster and Gate4.0 or Gate 5.0 ,you can see the results
with phantom on PC and on cluster are so different.Did anybody else
encounter this or know how to solve this problem?








  phantom



  Gate5.0 or Gate4.0




  PC or cluster






  total number



  true



  random



  scattered





  yes



  5.0



  PC





  8641



  6165



  2194



  282





  yes



  5.0



  cluster





  13355



  9406



  3632



  317











  yes



  5.0



  cluster



  13355



  9406



  3632



  317





  yes



  4.0



  cluster



  13362



  9436



  3634



  292











  yes



  5.0



  cluster



  13355



  9406



  3632



  317





  no






  5.0






  cluster






  13569






  9860






  3709






  0











  no






  5.0






  PC






  13692






  9996






  3696






  0





  no






  5.0






  cluster






  13569






  9860






  3709






  0







here are the relevant parts of my macro:

/control/verbose 0

##############################

#######
#Choose the visualisation Parameters
#####################################
/vis/disable

#/control/execute visu.mac

#     W O R L D
/gate/world/geometry/setXLength 150. cm
/gate/world/geometry/setYLength 150. cm
/gate/world/geometry/setZLength 150. cm

/control/execute camera.mac

/control/execute phantom.mac

/control/execute physics.mac

#    I N I T I A L I Z E
/gate/systems/cylindricalPET/verbose 0
/gate/geometry/enableAutoUpdate
/run/initialize

/control/execute digitizer.mac

#    V E R B O S I T Y
/control/verbose 0
/grdm/verbose 0
/run/verbose 0
/event/verbose 0
/tracking/verbose 0
/gate/application/verbose 0
/gate/generator/verbose 0
/gate/stacking/verbose 0
/gate/event/verbose 0
/gate/source/verbose 0




/control/execute source.mac

#    O U T P U T


/gate/output/verbose 0
#/gate/output/root/disable
/gate/output/ascii/disable

#------------Root File-----------------------

/gate/output/root/setFileName dlsPET
/gate/output/root/setRootNtupleFlag 1
/gate/output/root/setRootSinglesAdderFlag 0
/gate/output/root/setRootSinglesReadoutFlag 0
/gate/output/root/setRootHitFlag 0
/gate/output/root/setRootSinglesFlag 0
/gate/output/root/setRootCoincidencesFlag 1

#------------ascii File-----------------------

/gate/output/ascii/setFileName discoveryPET
/gate/output/ascii/setOutFileSinglesAdderFlag 0
/gate/output/ascii/setOutFileSinglesReadoutFlag 0
/gate/output/ascii/setOutFileSinglesThresholderFlag 0
/gate/output/ascii/setOutFileSinglesUpholderFlag 0
/gate/output/ascii/setOutFileHitsFlag 0
/gate/output/ascii/setOutFileSinglesFlag 0
/gate/output/ascii/setOutFileCoincidencesFlag 0


#   R A N D O M

# JamesRandom Ranlux64 MersenneTwister
#/gate/random/setEngineName MersenneTwister

#/gate/random/setEngineSeed default
#/gate/random/setEngineSeed auto
#/gate/random/setEngineSeed 123456789

#/gate/random/resetEngineFrom fileName

#/gate/random/verbose 1


#    S T A R T
/gate/application/setTimeSlice     10000. s
/gate/application/setTimeStart     0.  s
/gate/application/setTimeStop     1. s
/gate/application/startDAQ
exit




#    P H A N T O M
/gate/world/daughters/name myphantom
/gate/world/daughters/insert cylinder
/gate/myphantom/setMaterial Aluminium
/gate/myphantom/vis/setColor grey
/gate/myphantom/geometry/setRmax   3.2 mm


/gate/myphantom/geometry/setRmin   1.95 mm
/gate/myphantom/geometry/setHeight 700 mm
/gate/myphantom/attachPhantomSD




    S O U R C E
/gate/source/addSource twogamma
/gate/source/twogamma/setActivity 1000000. Bq

 /gate/source/twogamma/setType backtoback

#      Position
/gate/source/twogamma/gps/centre 0. 0. 0. cm

#      particle
/gate/source/twogamma/gps/particle gamma
/gate/source/twogamma/gps/energytype Mono
/gate/source/twogamma/gps/monoenergy 511 keV
#      TYPE
/gate/source/twogamma/gps/type Volume
#      SHAPE
/gate/source/twogamma/gps/shape Cylinder
/gate/source/twogamma/gps/radius 1.5 mm
/gate/source/twogamma/gps/halfz 350 mm

#/gate/source/twogamma/gps/confine NULL
/gate/source/twogamma/gps/angtype iso
#      EMISSION ANGLES
#/gate/source/twogamma/gps/mintheta 0. deg
#/gate/source/twogamma/gps/maxtheta 180. deg
#/gate/source/twogamma/gps/minphi 0. deg
#/gate/source/twogamma/gps/maxphi 360. deg

/gate/source/list




   Thanks,
                                                                           yawen


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