Problem 1403 - the protons in basic/B2/B2a example go straight even when magnetic field is present
Summary: the protons in basic/B2/B2a example go straight even when magnetic field is p...
Status: RESOLVED FIXED
Alias: None
Product: Geant4
Classification: Unclassified
Component: geometry/magneticfield (show other problems)
Version: 9.6
Hardware: PC Linux
: P5 critical
Assignee: Vladimir.Ivantchenko
URL:
: 1434 (view as problem list)
Depends on:
Blocks:
 
Reported: 2012-12-07 15:31 CET by Ivana Hrivnacova
Modified: 2013-02-25 19:55 CET (History)
2 users (show)

See Also:

Attachments
The snapshot of visualization scene from 9.5.p02 and 9.6 (50.69 KB, application/x-gzip)
2012-12-07 15:31 CET, Ivana Hrivnacova 		Details
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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. ***