Comparison with NIST

In this section we compare the remage simulation output with theoretical predictions from the NIST database.

Electron interactions in natural germanium

Monoenergetic electrons are simulated in a natural germanium sphere of 15 cm radius. Multiple Coulomb scattering is disabled through the

/process/inactivate msc

command, since it prevents us to measure the true integrated particle path length in the simulation (unless a very short step size limit is set).

We calculate stopping power and integrated path length of the simulated electrons and compare them with data from the ESTAR database (a short description of the reported quantities is available here).

Electron integrated path lengths versus initial electron energy.

Distribution of electron integrated path lengths.

Stopping power.

Simulation of electrons in natural germanium with default settings (i.e. no tuning of production cuts or step length).

Note

Simulation and analysis scripts are available in tests/nist.