[Gate-users] PET Sesitivity

[zahra ahmadi]

Dear Gate usersI'm defining a PET system using Gate simulation.When I'm calculating PET sensitivity, It's about 1.5 times bigger than the experimental setup. I'm not sure If I'm doing some parts wrong in my program or if I'm defining the NA22 source in the wrong method. Any Idea can help me.Sensitivity calculating method: N.Coincinedine/6s*100000*0.89955Best regardsZahra

/gate/physics/addProcess PhotoElectric/gate/physics/processes/PhotoElectric/setModel StandardModel
/gate/physics/addProcess Compton/gate/physics/processes/Compton/setModel StandardModel
/gate/physics/addProcess RayleighScattering/gate/physics/processes/RayleighScattering/setModel PenelopeModel
/gate/physics/addProcess ElectronIonisation/gate/physics/processes/ElectronIonisation/setModel StandardModel e-/gate/physics/processes/ElectronIonisation/setModel StandardModel e+
/gate/physics/addProcess Bremsstrahlung/gate/physics/processes/Bremsstrahlung/setModel StandardModel e-/gate/physics/processes/Bremsstrahlung/setModel StandardModel e+
/gate/physics/addProcess PositronAnnihilation
/gate/physics/addProcess MultipleScattering e+/gate/physics/addProcess MultipleScattering e-
/gate/physics/processList Enabled/gate/physics/processList Initialized
/gate/physics/addProcess Decay/gate/physics/addProcess RadioactiveDecay GenericIon

#=====================================================# INITIALISATION#=====================================================
/gate/run/initialize


#=====================================================#   D I G I T I Z E R: DETECTOR ELECTRONIC RESPONSE#===================================================== 
/gate/digitizer/Singles/insert                        adder/gate/digitizer/Singles/insert                        readout/gate/digitizer/Singles/readout/setDepth              3
/gate/digitizer/Singles/insert                        blurring/gate/digitizer/Singles/blurring/setResolution        0.12/gate/digitizer/Singles/blurring/setEnergyOfReference 511. keV
/gate/digitizer/Singles/insert                        thresholder/gate/digitizer/Singles/thresholder/setThreshold      435. keV/gate/digitizer/Singles/insert                        upholder/gate/digitizer/Singles/upholder/setUphold            650. keV

#=====================================================# C O I N C I D E N C E    S O R T E R#===================================================== 
/gate/digitizer/Coincidences/setWindow          4.11 ns
/gate/digitizer/Coincidences/minSectorDifference 1/gate/digitizer/name                            delay/gate/digitizer/insert                          coincidenceSorter/gate/digitizer/delay/setWindow                 4.11 ns/gate/digitizer/delay/setOffset                 500. ns
#=====================================================#  P A R T I C L E   S O U R C E#=====================================================

/gate/source/addSource na22/gate/source/na22/setActivity 100000 Bq/gate/source/na22/gps/particle ion/gate/source/na22/gps/ion 11 22 0 0/gate/source/na22/gps/monoenergy 0. keV/gate/source/na22/gps/angtype iso/gate/source/na22/gps/type  Volume/gate/source/na22/gps/shape  Sphere/gate/source/na22/gps/radius  0.5 mm/gate/source/na22/gps/centre 0. 0. 0. mm/gate/source/list



#=====================================================#  D A T A   O U T P U T   #=====================================================
/gate/output/root/enable/gate/output/root/setFileName             YourFile/gate/output/root/setRootHitFlag          1/gate/output/root/setRootSinglesFlag      1/gate/output/root/setRootCoincidencesFlag 1/gate/output/root/setRootdelayFlag        1

#====================================================#  R A N D O M   E N G I N E  A N D  S E E D#====================================================# JamesRandom Ranlux64 MersenneTwister/gate/random/setEngineName JamesRandom#/gate/random/setEngineSeed default#/gate/random/setEngineSeed auto#/gate/random/setEngineSeed 123456789/gate/random/setEngineSeed default#/gate/random/resetEngineFrom fileName/gate/random/verbose 1
#=====================================================#   M E A S U R E M E N T   S E T T I N G S   #=====================================================
/gate/application/setTimeSlice   6 s/gate/application/setTimeStart   0 s/gate/application/setTimeStop    6 s
/gate/application/startDAQ







-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opengatecollaboration.org/pipermail/gate-users/attachments/20220922/f9d14ec8/attachment.html>