### Set the verbosity off/on
# get lots of info about the tracking of each particle through detector
# (one line for each step of each track, including secondaries...)
/process/verbose  0
/tracking/verbose 0
/run/verbose      2
/event/verbose    0

### Initialise the detector and the physics
/run/initialize

### Select the incident particle and its energy
/gun/particle pi-
#/gun/particle mu-
#/gun/particle e-
/gun/energy 100 GeV

### Simulate ten events
/run/beamOn 10