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4.3.2010 - Kamil Sedlak

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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 commit is contained in:
sedlak
2010-03-04 12:52:07 +00:00
parent 701f17857f
commit 610abf6591
8 changed files with 602 additions and 28 deletions
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@ -426,7 +426,11 @@ Three special volumes ``Target, M0, M1 and M2''.
\item{\bf /musr/command globalfield printFieldValueAtPoint \emph{x} \emph{y} \emph{z}} \\
Print out the field value at the point $(x, y, z)$ (given in the global
coordinate system.
coordinate system).
\item{\bf /musr/command globalfield printFieldDerivativeAtPoint \emph{x} \emph{y} \emph{z}} \\
Print out the values of the derivative of the magnetic field at the point $(x, y, z)$
(given in the global coordinate system).
\end{description}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@ -950,6 +954,25 @@ These are typically not interesting for the analysis of the results of the simul
\end{description}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{Upgrading Geant4 version}
\begin{description}
\item{\bf Geant 4.9.1 and older} - copy the file ``src/G4DecayWithSpin.cc\_for\_Geant4.9.1\_and\_older''
to the file ``src/G4DecayWithSpin.cc''.
Also copy ``src/G4EqEMFieldWithSpin.cc\_for\_Geant4.9.1\_and\_older'' to ``src/G4EqEMFieldWithSpin.cc''.
\item{\bf Geant 4.9.2.p02} -- (only this particular Geant version!) copy the file
``src/G4EqEMFieldWithSpin.cc\_for\_Geant4.9.2p02\_only'' to the file ``src/G4EqEMFieldWithSpin.cc''.
\item{\bf Geant 4.9.2 and older} - copy the file ``src/musrPhysicsList.cc\_Geant4.9.2p02\_and\_older''
to the file ``src/musrPhysicsList.cc''.
\item{\bf Geant 4.9.3}
From the point of view of musrSim, the largest change in version 4.9.3 with respect to 4.9.2
is the different treatment of the physics processes, therefore the musrPhysicsList.cc had to be
modified, and also the physics processes listed in the *.mac file have to be changed!
Note that using Geant~4.9.3 with old *.mac files will formally run OK, but the results of the
simulation (slightly) differ from the same simulation based on Geant~4.9.2. However after
updating the *.mac file, the simulation done with Geant~4.9.3 more or less reproduces results
obtained with Geant~4.9.2.
\end{description}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{Example 1 -- Electrons passing through two scintillator tiles (101.mac)}
One of the easiest example to illustrate the basic features of the musrSim (and/or Geant4) is to
shoot electrons into a scintillator block, and to observe the energy deposited inside it.