Mean energy of water molecule ionization by electron impact

The cost of ionization of a water molecule by an electron impact is calculated on the basis of two models with identical initial data and compared with available data from the literature. The results of calculations show that the ionization cost for the model with a monoenergetic beam with $E$ = 1000 eV is $W$ = 25.26 eV; for the model taking into account the electron energy distribution function in a plasma with $T_e$ = 100 eV, this value is $W$ = 16.85 eV.