<div dir="ltr"><div style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:palatino,georgia,verdana,arial,sans-serif;font-size:medium;line-height:24px;text-align:justify">Dear Gate users,</span><br></div><div style="font-family:arial,sans-serif;font-size:13px"><div style="font-family:palatino,georgia,verdana,arial,sans-serif;font-size:medium;line-height:24px;text-align:justify">I am simulating an OpticalSystem in Gate6.2 for obtaining number of detected photon on scintillator volume. I changed many parameters such as; scintillation material which has already defined in Materials.xml file, source etc. but nothing change in Root output file. I can't see any photon produced by plastic scintillator, no detection of photon. Also I simulated OpticalSystem examples and still I can't see any photon detected.  Can anyone help me in advance ? Thank you .</div><div style="font-family:palatino,georgia,verdana,arial,sans-serif;font-size:medium;line-height:24px;text-align:justify">Below is my macro.<br></div></div><div style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:palatino,georgia,verdana,arial,sans-serif;font-size:medium;line-height:24px;text-align:justify">Best Regards</span><br></div><div style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:palatino,georgia,verdana,arial,sans-serif;font-size:medium;line-height:24px;text-align:justify">Nuray</span></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px"># VISUALISATION</div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/open OGLSQt</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/viewer/set/viewpointThetaPhi <span style="white-space:pre-wrap">  </span>30 60</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/viewer/zoom               <span style="white-space:pre-wrap">               </span>4</div><div style="font-family:arial,sans-serif;font-size:13px">#/vis/viewer/set/style surface</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/drawVolume</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/scene/add/trajectories</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/scene/add/hits</div><div style="font-family:arial,sans-serif;font-size:13px">/tracking/storeTrajectory 1</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/scene/endOfEventAction accumulate 100</div><div style="font-family:arial,sans-serif;font-size:13px">/vis/viewer/update</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/geometry/setMaterialDatabase<span style="white-space:pre-wrap">           </span>GateMaterials.db</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#=========================================================</div><div style="font-family:arial,sans-serif;font-size:13px">#     W O R L D</div><div style="font-family:arial,sans-serif;font-size:13px">#=========================================================</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/world/geometry/setXLength      10 cm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/world/geometry/setYLength      10 cm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/world/geometry/setZLength      10 cm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/world/setMaterial<span style="white-space:pre-wrap">           </span>Air</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#=========================================================</div><div style="font-family:arial,sans-serif;font-size:13px">#    G E O M E T R Y</div><div style="font-family:arial,sans-serif;font-size:13px">#=========================================================</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"># === optical system ===</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/world/daughters/name                      OpticalSystem</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/world/daughters/insert                    box</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/geometry/setXLength         10. mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/geometry/setYLength         7.0 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/geometry/setZLength         7.0 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/placement/setTranslation    0 0 0 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/setMaterial                 Air</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/vis/setColor                white</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/vis/forceWireframe</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/vis/setVisible               1</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"># === crystal  ===</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/daughters/name              scintillator</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/daughters/insert            box</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/geometry/setXLength               3 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/geometry/setYLength               7 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/geometry/setZLength               7 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/placement/setTranslation          -1.5 0 0 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/setMaterial                      Scinti-detector-C10H11</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/vis/setColor                      gray</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/vis/forceSolid</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/attachCrystalSD</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"># ===  electronic board ===</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/daughters/name              Electronics</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/OpticalSystem/daughters/insert            box</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/geometry/setXLength           2  mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/geometry/setYLength           7  mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/geometry/setZLength           7 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/setMaterial                   Air                  </div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/placement/setTranslation      -4 0 0 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/vis/setColor                  blue</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/Electronics/vis/forceSolid</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/systems/OpticalSystem/crystal/attach      scintillator</div><div style="font-family:arial,sans-serif;font-size:13px"># ===surface=====</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/surfaces/name                           <span style="white-space:pre-wrap">      </span>Detection1</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/surfaces/insert                         <span style="white-space:pre-wrap"> </span>Electronics</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/scintillator/surfaces/Detection1/setSurface          <span style="white-space:pre-wrap">        </span>perfect_apd </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#/gate/Electronics/surfaces/name                     <span style="white-space:pre-wrap">       </span>Detection2</div><div style="font-family:arial,sans-serif;font-size:13px">#/gate/Electronics/surfaces/insert                  <span style="white-space:pre-wrap">    </span> scintillator</div><div style="font-family:arial,sans-serif;font-size:13px">#/gate/Electronics/surfaces/Detection2/setSurface    <span style="white-space:pre-wrap">      </span>perfect_apd </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#=========================================================</div><div style="font-family:arial,sans-serif;font-size:13px">#   P H Y S I C S</div><div style="font-family:arial,sans-serif;font-size:13px">#=========================================================</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                         </span>PhotoElectric</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processes/PhotoElectric/setModel <span style="white-space:pre-wrap">              </span>PenelopeModel</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                            </span>Compton</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processes/Compton/setModel <span style="white-space:pre-wrap">          </span>PenelopeModel</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                            </span>RayleighScattering</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processes/RayleighScattering/setModel <span style="white-space:pre-wrap">    </span>PenelopeModel</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                            </span>ElectronIonisation</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processes/ElectronIonisation/setModel <span style="white-space:pre-wrap">    </span>StandardModel e-</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processes/ElectronIonisation/setModel <span style="white-space:pre-wrap">      </span>StandardModel e+</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                         </span>OpticalAbsorption</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess<span style="white-space:pre-wrap">                  </span> <span style="white-space:pre-wrap">      </span>PositronAnnihilation</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                             </span>Scintillation</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                            </span>OpticalBoundary</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                          </span>OpticalRayleigh</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/addProcess <span style="white-space:pre-wrap">                          </span>RadioactiveDecay</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processList<span style="white-space:pre-wrap">                          </span>Enabled</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/physics/processList <span style="white-space:pre-wrap">                         </span>Initialized</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px"># I N I T I A L I Z E </div><div style="font-family:arial,sans-serif;font-size:13px">/gate/run/initialize</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px"># DIGITIZER</div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/digitizer/Singles/insert opticaladder</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/digitizer/Singles/insert readout</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/digitizer/Singles/readout/setDepth 1</div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px"># SOURCE</div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/addSource<span style="white-space:pre-wrap">                    </span> <span style="white-space:pre-wrap">              </span>PETsource</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/particle <span style="white-space:pre-wrap">                     </span>e+</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/energytype <span style="white-space:pre-wrap">                  </span>Fluor18</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/setActivity                      100 becquerel</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/angtype                      iso</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/type<span style="white-space:pre-wrap">                             </span>Volume</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/shape <span style="white-space:pre-wrap">                   </span>Cylinder</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/radius         <span style="white-space:pre-wrap">            </span>0.3 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/halfz     <span style="white-space:pre-wrap">                     </span>7 mm</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/setForcedHalfLife <span style="white-space:pre-wrap">             </span>6586 s </div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/direction             <span style="white-space:pre-wrap">   </span>-10. 0. 0.</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/centre               <span style="white-space:pre-wrap"> </span>4. 0. 0. mm </div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/gps/angtype iso</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/PETsource/visualize<span style="white-space:pre-wrap">                   </span>2000 red 10  </div><div style="font-family:arial,sans-serif;font-size:13px">/gate/source/list</div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px">#  D A T A   O U T P U T   </div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/enable</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setFileName             OutputTest</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setRootHitFlag          1</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setRootSinglesFlag      1</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setRootOpticalFlag      1</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setRootRecordFlag<span style="white-space:pre-wrap">   </span>  0</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setSaveRndmFlag         0</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/root/setRootNtupleFlag       1</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/analysis/disable</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/output/fastanalysis/enable</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px">#   M E A S U R E M E N T   S E T T I N G S   </div><div style="font-family:arial,sans-serif;font-size:13px">#=====================================================</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/gate/application/setTimeSlice   4 s</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/application/setTimeStart   0 s</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/application/setTimeStop    4 s</div><div style="font-family:arial,sans-serif;font-size:13px">#/gate/output/allowNoOutput</div><div style="font-family:arial,sans-serif;font-size:13px">/gate/application/startDAQ</div></div>