- Particle emission due to photoionization of
$H_{2}$ in a volume only (no surface emission) - no deposition, no interpolation
- comparison of the number of emitted electrons with the reference solution (1 MPF and MPI=1)
- different MPF and number of MPI ranks are tested to yield the same result
- Note: Because the volume is exactly 1 cubic metre, the calculated electron density is exactly the number of real electrons in the system