1234567890      seed [1, 2147483646]; zero or negative number to randomize
1000            number of cells
MCDS PARAMETERS
4He             particle (e for electrons, 1H for protons, etc.)
5.0             particle energy (MeV)
0.0             fraction Bl/Bd
DMSO SIMULATION PARAMETERS
0.5             fraction of non-scavengeable DNA damage
0.5             concentration at half-level (mol dm^-3)
0.0             DMSO concentration (mol dm^-3)