Our main interest
Ionization & Dissociation of water by fast charged particles (i.e.
ionizing radiation)
e-, H+, Xq+, (hν) + H2O
In particular:
H+ + H2O
4 MeV
Xq+ + H2O → H2O+ + e- + Xq+
H2+ + O
Does the H2+ actually come from water?