/run/verbose 1
/tracking/storeTrajectory 1
/gps/particle proton
/gps/pos/type Plane
/gps/pos/shape Annulus
/gps/pos/rot1 0. 0. 1.
/gps/pos/rot2 0. 1. 0.
/gps/pos/radius 35.5 cm
/gps/pos/inner_radius 30.5 cm
/gps/pos/centre 780.1 0. 0. cm
/gps/ang/type cos
/gps/ang/maxtheta 1. deg
/gps/ene/type Mono
/gps/ene/mono 0.5 MeV
/run/beamOn 1000