<html><div style='background-color:'><DIV class=RTE> Hi everyone!<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p> <o:p> </o:p> I’m a new Gate user, who is facing some problems with Hoffman phantom simulation. <o:p></o:p> <o:p></o:p> I’ve ran benchmarkPET example and I got this warning message<o:p></o:p> <o:p> </o:p> <o:p></o:p>[GateTrajectoryNavigator::FindAnnihilationGammasTrackID]<o:p></o:p><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify"> WARNING : positron found and photonID vector size: 4<o:p></o:p></PRE><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify"> GateAnalysis::RecordEndOfEvent : WARNING : photonID vector size > 2<o:p></o:p></PRE> <o:p></o:p><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify"> </PRE><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify">Gate didn’t crash. According to some messages in the mailing list “the warning message is related to a positron that escaped the cylinder without annihilating with an electron. It's only a warning message that does not prevent the correct execution of Gate.</PRE><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify">”I’m now trying to simulate Hoffman phantom in benchmarkPET system, but I get the same warning message (normally twice) and then, after 5 days, I get a segmentation error like this one:<o:p></o:p></PRE> <o:p> </o:p> *** Break *** segmentation violation<o:p></o:p> Generating stack trace...<o:p></o:p> 0x0825a3d9 in GateCoincidenceSorter::ProcessSinglePulseList(GatePulseList*) + 0x849 from ./Gate<o:p></o:p> 0x081845a2 in GateDigitizer::Digitize() + 0x136 from ./Gate<o:p></o:p> 0x081abb7a in GateToDigi::RecordEndOfEvent(G4Event const*) + 0x1a from ./Gate<o:p></o:p> 0x08192b46 in GateOutputMgr::RecordEndOfEvent(G4Event const*) + 0x6a from ./Gate<o:p></o:p> 0x08189217 in GateEventAction::EndOfEventAction(G4Event const*) + 0x1f from ./Gate<o:p></o:p> 0x086dbcf6 in G4EventManager::DoProcessing(G4Event*) + 0x6fa from ./Gate<o:p></o:p> 0x086b41ed in G4RunManager::DoEventLoop(int, char const*, int) + 0xc5 from ./Gate<o:p></o:p> 0x086b3cac in G4RunManager::BeamOn(int, char const*, int) + 0x44 from ./Gate<o:p></o:p> 0x0817b0ee in GateApplicationMgr::StartDAQ() + 0x142 from ./Gate<o:p></o:p> 0x081c089f in GateApplicationMgrMessenger::SetNewValue(G4UIcommand*, G4String) + 0x11b from ./Gate<o:p></o:p> 0x08805120 in G4UIcommand::DoIt(G4String) + 0xd0 from ./Gate<o:p></o:p> 0x08812ad6 in G4UImanager::ApplyCommand(char const*) + 0x522 from ./Gate<o:p></o:p> 0x0881b64e in G4UIbatch::SessionStart() + 0x202 from ./Gate<o:p></o:p> 0x08810d71 in G4UImanager::ExecuteMacroFile(char const*) + 0x31 from ./Gate<o:p></o:p> 0x088202b7 in G4UIcontrolMessenger::SetNewValue(G4UIcommand*, G4String) + 0x2b3 from ./Gate<o:p></o:p> 0x08805120 in G4UIcommand::DoIt(G4String) + 0xd0 from ./Gate<o:p></o:p> 0x08812ad6 in G4UImanager::ApplyCommand(char const*) + 0x522 from ./Gate<o:p></o:p> 0x083460e0 in G4UIterminal::ExecuteCommand(G4String) + 0x4c from ./Gate<o:p></o:p> 0x08345d88 in G4UIterminal::SessionStart() + 0x4c from ./Gate<o:p></o:p> 0x0817984f in main + 0x39f from ./Gate<o:p></o:p> 0xb5fc9748 in __libc_start_main + 0xf8 from /lib/tls/libc.so.6<o:p></o:p> 0x08178de9 in TFile::TFile[in-charge](char const*, char const*, char const*, int) + 0x41 from ./Gate<o:p></o:p> Abort<o:p></o:p> <o:p> </o:p> <o:p></o:p>Also according to the mailing list these warning messages happens often when the source is in Air, so the suggestion is to use some liquid or solid. I have tried to run my Hoffman simulation with the range.dat suggested in Gate voxelized phantoms examples (plastic, glass, water and air) and I also defined other ranges (only water and air). However I get always the warning messages mentioned above and then, some days after, a segmentation error. <o:p></o:p><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify"><o:p></o:p></PRE><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify">I would be very appreciated if anyone could help me with this issue.<o:p></o:p></PRE><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify"><o:p></o:p></PRE><PRE style="TEXT-JUSTIFY: inter-ideograph; LINE-HEIGHT: 150%; TEXT-ALIGN: justify">Ana Oliveira<o:p></o:p></PRE><PRE><o:p> </o:p></PRE></DIV></div> <hr>MSN Messenger: converse com os seus amigos online. <a href="http://g.msn.com/8HMBBR/2752??PS=47575" target="_top">Instale grátis. Clique aqui.</a> </html>