He I
Cross section for
ionization
1s2s
1
S -> Continuum
Number of states included:
75
Energy (eV)
Cross section
5.16
1.38900e-16
6.66
3.49200e-16
10.16
5.62400e-16
15.33
5.50000e-16
20.16
5.04200e-16
30.16
4.13100e-16
60.16
2.57900e-16
80.17
2.26200e-16
180.16
1.08600e-16
480.16
4.50100e-17
880.16
2.25600e-17