#-------------------------------------------------------------------------------
# Set particle gun settings
#-------------------------------------------------------------------------------
/gps/particle proton
/gps/number 1 			# per event

# Energy
/gps/ene/type Gauss
/gps/ene/mono 62.5 MeV
/gps/ene/sigma 0.082 MeV

# Source position
/gps/position 0.0 0.0 -4200 mm

# Beam width
/gps/pos/type Beam
/gps/pos/sigma_x 4.0 mm
/gps/pos/sigma_y 4.5 mm

# Angular distribution of primaries for realistic emittance
/gps/ang/type beam2d
/gps/ang/sigma_x 2.3 mrad
/gps/ang/sigma_y 1.2 mrad
/gps/ang/rot1 -1 0 0		# aligns gps with positive z-axis