Share This Author
Recoil-ion and electron momentum spectroscopy: reaction-microscopes
Recoil-ion and electron momentum spectroscopy is a rapidly developing technique that allows one to measure the vector momenta of several ions and electrons resulting from atomic or molecular…
Separation of recollision mechanisms in nonsequential strong field double ionization of Ar: the role of excitation tunneling.
A kinematical analysis of these spectra within the classical "recollision model" revealed an (e,2e)-like process and excitation with subsequent tunneling of the second electron as two different ionization mechanisms demonstrating that excitation-tunneling is the dominant contribution to the total double ionization yield.
Few-photon multiple ionization of ne and ar by strong free-electron-laser pulses.
Ne2+ recoil-ion-momentum distributions suggest that two electrons absorbing "instantaneously" two photons are ejected most likely into opposite hemispheres with similar energies.
Electron impact ionization in the presence of a laser field : A kinematically complete (nγe,2e) experiment
Single ionization of He by 1 keV electron impact in the presence of an intense (I=4 x 10(12) W/cm(2)) laser field (lambda=1064 nm) has been explored in a kinematically complete experiment using a…
Laser-assisted electron-impact ionization of atoms
Absolute cross sections for photoionization of Xeq + ions (1 ⩽ q ⩽ 5) at the 3d ionization threshold
The photon-ion merged-beams technique has been employed at the new Photon-Ion spectrometer at PETRA III for measuring multiple photoionization of Xeq + (q = 1–5) ions. Total ionization cross sections…
The Freiburg Electron Beam Ion Trap/Source Project FreEBIT
An electron beam ion trap (EBIT) is under construction at the University of Freiburg. It will be operated both as an ion trap and as an ion source, and its design specifications will allow production…
Benchmark experiment for electron-impact ionization of argon: Absolute triple-differential cross sections via three-dimensional electron emission images
Single ionization of argon by 195-eV electron impact is studied in an experiment, where the absolute triple-differential cross sections are presented as three-dimensional electron emission images for…
A subnanosecond pulsed ion source for micrometer focused ion beams.
- C. Höhr, D. Fischer, R. Moshammer, A. Dorn, J. Ullrich
- PhysicsThe Review of scientific instruments
- 6 May 2008
A new, compact design of an ion source delivers nanosecond pulsed ion beams with low emittance, which can be focused to micrometer size, and can be combined with any type of collision experiment where the size and the time structure of the projectile beam crucially affect the achievable experimental resolution.
An (e, 2e+ ion) study of electron-impact ionization and fragmentation of tetrafluoromethane at low energies
Abstract We study ionization and fragmentation of tetrafluoromethane (CF4) molecule induced by electron impact at low energies (E0 = 38 and 67 eV). We use a reaction microscope combined with a pulsed…