FOLLOWING ELECTRON IMPACT EXCITATION OF SINGLE(93Np, 94Pu, 95Am, 96Cm, 97Bk, 98Cf) ATOMS Oi SUBHELL IONIZATION CROSS SECTIONS BY USING LOTZ'S EQUATIONS

O shell and five O-i subshells ionization cross sections sigma O and sigma Oi following electron impact on (93Np, 94Pu, 95Am, 96Cm, 97Bk, 98Cf) atoms calculated. By using Lotz's equation in Matlab ionization cross section values obtained for 12 electron impact energy values in first ionization energy to five times ionization energy range for each atom. Lotz's parameters and special commands used for each ionization cross sections calculations. Starting all most from ionization threshold values; ionization cross sections are increasing rapidly with electron impact energy E-o. For higher E-o values this increments getting smaller for every O-i subshells. For smaller E-o energy close to threshold all ionization cross sections decrease. For a fixed electron impact energy while Z value increases from 93 <= Z <= 98; ionization cross sections decrease with Z. Results may help to understand similar findings which obtained from other electron impact excitation of O-i subshells ionization cross sections studies for similar size single atom.