Problem 1403

Summary: the protons in basic/B2/B2a example go straight even when magnetic field is present
Product: Geant4 Reporter: Ivana Hrivnacova <ivana>
Component: geometry/magneticfieldAssignee: Vladimir.Ivantchenko
Status: RESOLVED FIXED    
Severity: critical CC: asai, janstar1122
Priority: P5    
Version: 9.6   
Hardware: PC   
OS: Linux   
Attachments: The snapshot of visualization scene from 9.5.p02 and 9.6

Description Ivana Hrivnacova 2012-12-07 15:31:06 CET
Created attachment 195 [details]
The snapshot of visualization scene from 9.5.p02 and 9.6

There seems to be a problem in setting field in 9.6 release;
in basic/B2/B2a example, after setting:
/B2/det/setField 0.2 tesla
/B2/det/stepMax 1.0 mm
/gun/energy 0.3 GeV
/run/beamOn 3
protons trajectories are straight while they should bend.
See the attached picture, and also the picture with 9.5.p02.
Comment 1 asai 2012-12-28 09:30:32 CET
This problem affects to all charged particles traveling in magnetic field and having multiple scattering.
Comment 2 Vladimir.Ivantchenko 2012-12-28 10:56:07 CET
Hi Ivana,
The fix is submitted and pending stt testing.

VI
Comment 3 Vladimir.Ivantchenko 2013-02-05 19:32:45 CET
The fix is included in the patch01.

VI
Comment 4 Vladimir.Ivantchenko 2013-02-25 19:55:06 CET
*** Problem 1434 has been marked as a duplicate of this problem. ***