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<p class="MsoNormal"><span style="color:#1F497D">It was fixed. Sorry for the last message. Turned out to be the different work folder.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Yuncheng<o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Gate-users [mailto:gate-users-bounces@lists.opengatecollaboration.org]
<b>On Behalf Of </b>Yuncheng Zhong<br>
<b>Sent:</b> Thursday, June 22, 2017 12:18 PM<br>
<b>To:</b> gate-users@lists.opengatecollaboration.org<br>
<b>Subject:</b> [Gate-users] help on using phase space file<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Dear All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I was trying to use a phase space file as the photon source in a PET simulation and encountered a problem. The phase space file was a .root file. When GATE started, I always got an error message,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Error in <TChain::SetBranchAddress>: unknown branch -> Weight<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have tried to include and exclude the branch of ‘Weight’ in the phase space files, but the error did not go away. I am using Gate v7.1.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can someone give me some advice? Any help will be appreciated. Thanks!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Yuncheng Zhong<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
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<p align="right" style="text-align:right"><b><span style="font-size:17.0pt;font-family:"Helvetica",sans-serif;color:#0054A0;letter-spacing:-2.25pt">UT</span></b><b><span style="font-size:17.0pt;font-family:"Helvetica",sans-serif;color:#0054A0"> Southwestern</span></b>
<o:p></o:p></p>
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<p align="right" style="text-align:right"><span style="font-size:13.0pt;font-family:"Helvetica",sans-serif;color:#666D70">Medical Center</span><o:p></o:p></p>
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