how does positive ionisation occur?
<answer> The Townsend avalanche is a good example of the creation of positive ions and free electrons due to ion impact. <context> Adiabatic ionization is a form of ionization in which an electron is removed from or added to an atom or molecule in its lowest energy state to form an ion in its lowest energy state.The Townsend avalanche is a good example of the creation of positive ions and free electrons due to ion impact.diabatic ionization is a form of ionization in which an electron is removed from or added to an atom or molecule in its lowest energy state to form an ion in its lowest energy state.