30000000                   # total photon
1648335518            # RNG seed, negative to generate
10.1 10.2 0.0        # source position (mm)
0. 0. 1.                # initial directional vector
0.e+00 5.e-09 5e-09  # time-gates(s): start, end, step
cube20                # mesh tag
2201
0	1            # detector number and radius (mm)
