#==========================- Pre-initialisation parameters -=========================

#choose the type of phantom
/changePhantom/setPhantom Normalization 

#set the activity in the phantom
/change/Activity 3840000 becquerel #3840000 becquerel

#Set the halflife of the isotope in units of second
/change/HalfLife 6586.2 s #Halflife of F-18

#Change the size of the phantom 
/changePhantom/Radius 175 mm 
/changePhantom/Length 216 mm

#Change the position of phantom. !!!Remember to change the source position as well.
/changePhantom/position 0 0 0 mm

/run/initialize
/run/verbose 2

/gps/particle ion
/gps/ion 9 18 0 0 # F-18
#/gps/particle e+
/gps/energy 0
/gps/pos/type Volume
/gps/pos/shape Cylinder
/gps/pos/centre 0 0 0 mm 
/gps/pos/radius 175 mm 
/gps/pos/halfz  108 mm
/gps/ang/type iso

#/random/setSeeds  1 2

/run/beamOn 109865964