<div dir="ltr"><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">Dear gate users,</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">I'm using a PETscanner system in order to study the TOF of the Cherenkov Photons coincidences.</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">I get acceptable results for the TOF with 15 000 primary events, different materials (LSO, LYSO, BGO and PbF₂) but now I'm looking for more statistics in the simulation with the aim of comparing my results with the experimental ones….</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><span style="font-variant:normal"><font color="#000000"><span style="letter-spacing:normal"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><span style="font-style:normal"><span style="font-weight:normal">My simulation at some point stops when I use more primary events and I<span> </span></span></span></font></font></span></font></span><span style="font-variant:normal"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><span style="letter-spacing:normal"><span style="font-style:normal"><span style="font-weight:normal">can</span></span></span></font></font></font></span><span style="font-variant:normal"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><span style="letter-spacing:normal"><span style="font-style:normal"><span style="font-weight:normal">'</span></span></span></font></font></font></span><em><span style="font-variant:normal"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><span style="letter-spacing:normal"><span style="font-style:normal"><span style="font-weight:normal">t</span></span></span></font></font></font></span></em><span style="font-variant:normal"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><span style="letter-spacing:normal"><span style="font-style:normal"><span style="font-weight:normal"><span> </span>understand why….</span></span></span></font></font></font></span></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">As I said in a previous email for different seeds (1, 2 and 3) in my output.root I get 14 000 Singles and 2 000 Coincidences using PbF_{2<span> </span>}crystals. The number of primary events in which the simulation stops is different in each case….</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">For this simulations I used:</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"># a simple back-back annigilation gamma source</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/addSource PencilBeam</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/<wbr>setType backtoback</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>particle gamma</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>energytype Mono</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>monoenergy 511. keV</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"># position</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>centre 0. 0. 0. cm</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"># angular distribution approximately! covering entry window in current geometry!</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>angtype iso</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>mintheta 65. deg</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>maxtheta 115. deg</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>minphi -10. deg</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/source/PencilBeam/gps/<wbr>maxphi 10. deg</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">If I comment the last 4 lines of my source definition turning it into a source that emits in a backtoback isotropically my simulation stops using seed 1 in 395 725 (almost 400 000) primary events (1 h) when complete 15 000 Singles (1 000 more than before) and the same 2 000 Coincidences….</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">If I also comment the coincidences information in the output.root my simulation stops again using seed 1 in the same amount of primary events (395 725) when complete again, 15 000 Singles….</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">So, I do not think that my real problem be in the amount of initial particles with which I run my simulation. Maybe is more related with the way in which the Singles are stored in Gate for a PETscanner system in order to calculate which events are or not in coincidence….</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:400;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000" style="font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:normal;letter-spacing:normal"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">Maybe there is some cut-off somewhere that doesn'<em><span style="font-style:normal">t<span> </span></span></em>allow my simulation to continue when i<em><span style="font-style:normal">t</span></em><em><span style="font-style:normal">'</span></em>s initiated with more primary events and </font></font></font><font color="#000000" style="font-size:12.8px"><font face="Times New Roman, serif"><font style="font-size:12pt">many Cherenkov Photons are produced. </font></font></font><font color="#000000" style="font-size:12.8px"><font face="Times New Roman, serif"><font style="font-size:12pt">I'm also using </font></font></font><font color="#000000" style="font-size:12.8px"><font face="Times New Roman, serif"><font style="font-size:12pt">the </font></font></font><font color="#000000" face="Times New Roman, serif" style="font-size:12.8px"><span style="font-size:16px">RoughTeflon_LUT surface for the crystals....</span></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">I would like to point out that as I'm working with Cherenkov Photons I'm </font></font></font><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(0,0,0)">using the</span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(0,0,0)"> </span><span style="font-size:16px;font-family:"Times New Roman",serif;color:rgb(0,0,0)">opticaladder</span><span style="font-size:12pt;font-family:"Times New Roman",serif;color:rgb(0,0,0)">:</span></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/digitizer/Singles/insert opticaladder</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/digitizer/Singles/insert readout</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">/gate/digitizer/Singles/<wbr>readout/setDepth 3</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><br></font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">Any help I would really appreciate it….</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:0.13in"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">Best regards,</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:0.13in"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">Dania Consuegra Rodríguez</font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:0.13in"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt"><font face="Times New Roman, serif">Phd student<span> </span></font><em><font face="Times New Roman, serif"><span style="font-style:normal"><b>Jožef Stefan Institute</b></span></font></em></font></font></font></p><p align="justify" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;margin-bottom:0in;line-height:12.8px"><font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size:12pt">PD> With my analysis of the root output information I can get the TOF or from the information of the Singles tree or from the information of the Coincidences tree with differences of less than 1 ps between both methods.</font></font></font></p><br class="gmail-Apple-interchange-newline"><br></div>