He I

Cross section for ionization 1s2 1S -> Continuum

Number of states included: 75

Energy (eV)Cross section
21.00 2.77300e-22
22.60 9.26400e-22
25.00 4.02300e-19
26.50 1.53000e-18
30.00 6.57500e-18
35.16 1.18300e-17
40.00 1.61500e-17
50.00 2.38800e-17
80.00 3.59500e-17
100.00 3.55500e-17
200.00 3.26400e-17
500.00 1.95900e-17
900.00 1.28300e-17