| Summary: | strange tracking behavior | ||
|---|---|---|---|
| Product: | Examples/Basic and Novice | Reporter: | janstar1122 |
| Component: | general | Assignee: | Vladimir.Ivantchenko |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | trivial | CC: | asai |
| Priority: | P5 | ||
| Version: | 9.6 | ||
| Hardware: | Apple | ||
| OS: | Linux | ||
| Attachments: | Left G4.9.6=bad, right G4.9.p02=good | ||
Thank you for reporting this problem. We believe this problem is caused by the same bug as reported on the report #1403. We have found the fix and we expect a patch to be released in a few days. Thank you once again. Makoto Asai Hello, Thanks for the plot. You are right that Geant4 9.6 has a serious bug for tracking in magnetic field. The fix is prepared for the patch01 which should be available this week. Please, try to rerun your setup with the patch version. VI I confirm the problem has been resolved in G4.9.6.p01 Thanks *** This problem has been marked as a duplicate of problem 1403 *** |
Created attachment 203 [details] Left G4.9.6=bad, right G4.9.p02=good Hi, I have installed Geant 4.9.6 on SL5.8 inside a Virtual Machine running on Mac under WMware. A test job, attached, shows how single electron w/ PT=50 MeV is being tracked in an empty space filled with Air and 0.5T B-filed. The plot on the left shows strange zig-zags are from my new installation of G4.9.6 on SL5.8. The plot on the right is from my old VM running G4.9.02p on SL5.6 - I think this is good result. The same files were compiled & executed on both VM's. I'm not that familiar with Geant to decide how to debug the issue. Can you advice me? Thanks Jan Balewski