55

It is not a clear question, but i can give the following answers:

1- If you want to have results from each energy separately, you need to execute your program separately for 50 energies.!

2- If you want to execute your program for 50 different energies simultaneously, you can define more than one energy in the primary generator action class (it is easier to use GPS class for defining the source). Then, the results from different energies are mixed together. It means that the results are due to particles emitted with different 50 energies.

3- Probably the parallel examples in Geant4 examples help you (examples/extended/parallel)

You can simply change the energy in your primary generator after each run.

Inside a for loop, start a run, write down your results, change the energy (e.g. via a global variable) and do the next beamOn.

(I did not understand the purpose of your question - what are "residual nuclide in 50 different energies").

  Patrik

Hi,

I think a better way is write a macro with all the energies like

/gun/energy xx keV

/run/beamOn

......

and saving the terminal output in a output.log file so that you can see the results in one output file. This can be easily done using the following command in terminal

./ macro.mac | tee output.log

You can also use loops and a good description about how to use them is available at

http://geant4.in2p3.fr/2007/prog/MakotoAsai/UserInterface1.pdf

Bilal

you can  try this: make a macro file e.g kapis.mac

add the following

/gun/evergy {eKin} MeV

/run/beamOn 100000

/control/shell youroutput.dat output_{eKin}.dat

then in geant4 command line paste this:

/control/loop kapis.mac eKin 10 100 20

assuming the initial energy denoted by variable  ekin is 10kev and final is 100kev in steps of 20kev or so as you wish.