1) UPGRADE TO GEANT 4.9.3
- Physics list had been modified
- List of the physics processes in *.mac has to be modified too!
(otherwise results of 4.9.3 do not reproduce well the results
of 4.9.2).
Example *.mac files still use the old implementation of the physics
processes, i.e. they have to be corrected in future!
2) POSSIBILITY TO WRITE OUT DERIVATIVES OF THE MAGNETIC FIELD
AT A GIVEN POINT (see the documentation,
"/musr/command globalfield printFieldDerivativeAtPoint".)
This svn update includes several smaller corrections and updates accumulated
over last few months:
1) For the Geant4.9.2 it was necessary to remove the privately modified file
src/G4EqEMFieldWithSpin.cc. Our corrections in this file (and also in
the file src/G4DecayWithSpin.cc) were adopted by the Geant developers into
the official Geant code, and therefore these two files were deleted.
However, if one uses older version of Geant (i.e. Geant4.9.1 or older),
one should rename the G4EqEMFieldWithSpin.cc_for_Geant4.9.1_and_older in
his/her src directory to G4EqEMFieldWithSpin.cc to correct for a Geant
bug.
2) Implementation of save_polx, save_poly and save_polz variables
3) Implementation of the field map normalisation within the field map
itself (was already possible for the field-map formats generated by Toni,
now it is extended also for the field maps generated by OPERA).
4) Possibility to swap and invert x and y axis read out from the TURTLE
file.
5) Perhaps some other tiny changes
Bug correction in "G4UserLimit":
DETAILS OF THE BUG:
Call of "G4UserLimits" was inactive in the musrSim
(using the comand "/musr/command SetUserLimits log_target 0.01")
was ignored by the simulation.
I found out, that in addition to the call of "G4UserLimits",
the "G4StepLimiter" and/or "G4UserSpecialCuts" has to be called
for a given particle (particles) that needs to be limitted. These processes
were not implemented.
I corrected the musrSim code in the svn repository. From now on,
"G4StepLimiter" should function fine, IF CALLED TOGETHER WITH SOMETHING
LIKE:
/musr/command process addProcess e- G4StepLimiter -1 -1 4
/musr/command process addProcess e+ G4StepLimiter -1 -1 4
/musr/command process addProcess mu+ G4StepLimiter -1 -1 5
More details can be found in:
http://hypernews.slac.stanford.edu/HyperNews/geant4/get/eventtrackmanage/702/1.html
and
http://geant4.web.cern.ch/geant4/UserDocumentation/UsersGuides/ForApplicationDeveloper/html/ch05s07.html
Added possibility to use mu- (or other particles) as the primary particles
in the G4ParticleGun (this option can be switched on by
/gun/primaryparticle ).
This is the first version of the muSR simulation code (musrSim)
based on the merged codes of Kamil Sedlak and Toni Shiroka.
It should be a running version of the simulation code, however
it has not been very well tested, therefore it will probably
need some further development.
