Atomic hydrogen Atoms 8 Hydrogen atoms 4 Ionization 4 Monte Carlo methods 4 Multi-charged ion 4 Numerical solution 4 Photons 4 State selective 4 Atom lasers 2 Atomic spectra 2 Atomic spectroscopy 2 Charge exchanges 2 Charge transfer 2 Charge-up 2 Classical trajectory monte carlo 2 Classical trajectory monte carlo methods 2 Collision systems 2 Dinger equation 2 Dipolar approximations 2 Eikonal 2 Electric fields 2 Electron capture 2 Electron-capture cross sections 2 Electron-capture process 2 Excitation cross section 2 Excitation mechanisms 2 Highly charged ions 2 Hydrogen 2 Impact-parameter 2