| Summary: | apparent loop in tracking | ||
|---|---|---|---|
| Product: | Geant4 | Reporter: | rtascher |
| Component: | processes/electromagnetic/lowenergy | Assignee: | Maria.Grazia.Pia |
| Status: | RESOLVED INVALID | ||
| Severity: | normal | ||
| Priority: | P2 | ||
| Version: | 2.0 | ||
| Hardware: | PC | ||
| OS: | Linux | ||
The problem was identified as related to user code, not to Geant4. Sorry for the late reply, the problem was actually closed long time ago (July 2000). |
1) an electron is tracked even with an energy below the cut (1.37 MeV) 2) almost infinite step lengths, but the e- does not move 3) the program loops for a while, then suddenly breaks free 4) the overall run time is about 57 times longer with this version than with the previous one (4.1.1) FOLLOWING is an excerpt of a trace : ******************************************************************************** ************************* * G4Track Information: Particle = e-, Track ID = 2, Parent ID = 1 ******************************************************************************** ************************* Step# X(mm) Y(mm) Z(mm) KinE(MeV) dE(MeV) StepLeng TrackLeng NextVolume ProcName 0 0.00657 -0.0562 0.498 0.00706 0 0 0 Marker initStep 1 0.00559 -0.0559 0.5 0.001 0 0.172 0.172 Marker LowEnBrem 2 0.00559 -0.0559 0.5 0.001 0 2.22e+307 2.22e+307 Marker LowEnergyIoni 3 0.00559 -0.0559 0.5 0.001 0 4.96e+307 7.18e+307 Marker LowEnergyIoni 4 0.00558 -0.0559 0.5 0.001 0 7.57e+307 1.48e+308 Marker LowEnergyIoni 5 0.00559 -0.0559 0.5 0.001 0 6.36e+307 inf Marker LowEnBrem 6 0.00558 -0.0559 0.5 0.001 0 1.62e+306 inf Marker LowEnBrem 7 0.00557 -0.0559 0.5 0.001 0 5.26e+307 inf Marker LowEnergyIoni 8 0.00557 -0.0559 0.5 0.001 0 7.29e+307 inf Marker LowEnBrem ---------------------------------- and it goes on like this for more than 30