  We have designed a Euler approximation Monte-Carlo code for the calculation
of the ionization of atomic hydrogen by protons with energies between 0.05 and
1.0 MeV. This code is used to calculate the total ionization cross sections
s(E), the angular distribution double differential cross sections d2s/ (dW -
dE) for electrons with energies of 150 eV ionized by 300 keV protons and the
energy distribution d2s/ (dW - dE) for the ionized electrons emitted at 10o by
protons of energy 300 keV. Our calculations are compared to experimental values
of these quantities as well as independent calculations. We find excellent
agreement of our calculated cross section and reasonable agreement of our
calculated double differential cross section with independent calculations and
measurements.
