Reseach
Projects (ongoing and past)
- Physics education: problem solving in physics (current)
- Ionization of atoms by neutron impact (current)
- Dynamic of electron correlation in atomic systems
- Double electron transitions by particle impact (excitation - ionization, transfer - ionization)
- Sputtering of large clusters by particle bombardment
- Accelerator Science (multiple projects)
- Atomic data for plasma diagnostics and modeling
Computer codes written for various projects
- Bear: Single and double electron excitation, single ionization, excitation of autoionizing states of helium by particle impact.
- Bear II: Excitation - ionization of helium by electron and ion impact.
- Trion: Transfer - ionization in ion-atom collisions.
- Cluster: Sputtering by particle bombardment in a shock wave model
- Domino: Spectral line shapes of Hydrogen-like ions in high temperature plasma
Atomic Data Bases and Software
- HiBase: software for hierarchical management of atomic data on personal computers.
- Single and multiply ionization of atoms, ions and simple molecules by electron impact
- Excitation of atoms and ions by electron impact
- Specialized bibliography database for two-electron transitions in ion-atom collisions
10 Selected Publications (out of 75)
- Independent time approximation for dynamically interacting multi-electron systems
A. L. Godunov and J. H. McGuire
J.Phys.B:At.Mol.Opt.Phys., vol. 34, L223-L229 (2001) (IOP Publishing)
- Interaction of atomic systems with x-ray free-electron lasers
M. A. Kornberg, A. L. Godunov, S.Itza-Ortiz, D.L. Ederer, J.H. McGuire, L.Young
Journal of Synchrotron Radiation, vol. 9, 298-303 (2002)
- Time evolution and use of multiple times in the N-body problem
J. H. McGuire and A. L. Godunov
Phys. Rev. A, vol. 67, issue 4, 042701 (6 pages) (2003)
- Time ordering in multi-electron dynamics
J. H. McGuire, A. L. Godunov, Kh. Kh. Shakov, V. A. Schipakov, H. Merabet, R. Bruch and J. Hanni
J. Phys. B: At. Mol. Opt. Phys. vol. 36, 209-216 (2003) (IOP Publishing)
- Fully differential cross sections for transfer ionization -
a sensitive probe of high level correlation effects in atoms
A. L. Godunov, Colm T. Whelan and H. R. J. Walters
J. Phys. B: At. Mol. Opt. Phys. vol. 37, L201-8 (2004) (IOP Publishing)
- Revealing the effect of angular correlation in the ground-state He wavefunction: a coincidence study of
the transfer ionization process
M Schöffler, A L Godunov, Colm T Whelan, H R J Walters, V S Schipakov, V Mergel, R Dörner, O Jagutzki,
L Ph H Schmidt, J Titze, E Weigold and H Schmidt-Böcking
J. Phys. B: At. Mol. Opt. Phys. vol. 38, L123-8 (2005) (IOP Publishing)
- Total cross sections for transfer ionization in fast ion-helium collisions
A L Godunov, J H McGuire, V S Schipakov, H R J Walters and Colm T Whelan
J. Phys. B: At. Mol. Opt. Phys. vol. 39, 987-996 (2006) (IOP Publishing)
- On the extension of (e,2e) theory to coincidence studies of ion–atom collisions
A L Godunov, Marco Kampp, B Sulik, H R J Walters and Colm T Whelan
Nuclear Instruments and Methods in Physics Research B 261, 222-225 (2007)
- Effect of angular electron correlation in He: Second-order calculations for transfer ionization
A L Godunov, H R J Walters and Colm T Whelan
Phys. Rev. A, vol. 78, 012714 (5 pages) (2008)
- Double Differential Spectra of Scattered Protons Ionizing Atomic Hydrogen
M. Schulz, A.C. Laforge, K.N. Egodapitiya, J.S. Alexander, A. Hasan, M.F. Ciappina, A.C. Roy, R. Dey, A. Samolov and
A. L. Godunov
Phys. Rev. A, vol. 81, 052705 (11 pages) (2010)