Recoil-ion and electron momentum spectroscopy is a rapidly develo** technique that
allows one to measure the vector momenta of several ions and electrons resulting from …

Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS) is a novel momentum space
imaging technique for the investigation of the dynamics of ionizing ion, electron or photon …

70 years ago Maria Göppert-Mayer [1] showed that the energy of many photons can be
combined to achieve ionization in cases where the energy of one photon is not sufficient to …

Abstract The COLTRIMS Reaction Microscope C‐REMI can image the momentum vectors of
all emitted charged fragments in an atomic or molecular reactions similar to the bubble …

We present the momentum distributions of the nucleus and of the electrons from double
ionization of the helium atom by Compton scattering of photons with h ν= 40 keV. We find …

The removal of two (or more) electrons by a single photon from an atom or molecule is a
fundamentally important process as it is a direct probe of electron correlation. Synchrotron …

This paper describes the mechanisms by which the nonresonant interaction of photons with
atoms can lead to direct emission of two electrons from an atom. We discuss three different …

We investigate two-photon double ionization of helium by intense (≈ 10 15 W∕ cm 2)
ultrashort (≈ 300 as) soft-x-ray pulses (E= 91.6 eV). The time-dependent two-electron …

This paper reports on the investigation of the double K-shell ionization of metallic aluminum
induced by photon and electron impact. The experimental method consisted to measure the …

We implement a full nonlinear optimization method to fit continuum states with complex
Gaussians. The application to a set of regular scattering Coulomb functions allows us to …