Version C++ TEION-C code is made on the basis of fortran version of TEION
code for calculations of passage of particles through a matter. TEION code
calculates the energy loss for protons, pions and ions. Energy loss at low
energy is given by the L.Linhard theory. Ionization energy loss by high
energy particles is given by the Bethe-Bloch equation. Shell and other
low-energy corrections derived from Ziegler, density effect according to
Sternheimer. Bremsstrahlung and electron pair production at high energy by
heavy charged particles, treated as a continuous energy loss. In the
inter-mediate region we use the analytic approximation. Its coefficients are
determined by comparison with the Lindhard expressions at low energies and
the Bethe-Bloch expression at high energies.

