State-Selective Electron Capture in Low Velocity Multiply Charged Ion, Helium Collisions

Cold Target Recoil Ion Momentum Spectroscopy

“…For slow (6.8 keV/u) bare Ne and Ar on He collisions Cassimi and coworkers [109] have studied state selective cross-sections for single capture. With a recoil ion momentum resolution of 0.4 a.u.…”

“…All grids and the inside of the drift tube are germanium coated. Instead of the carbon "ber in other setups wires or rings of thin sheet metal, which are connected by resistors, have been used successfully [64,89,109,110]. Fig.…”

“…the energy range of states which are populated) with the square root of the projectile energy and a decreasing energy gain with increasing velocity. The scattering angles for a given Q-value is for the lowest velocity centered around half the coulomb angle ( A "Q/2E with E being the projectile laboratory energy (see also [109]). This indicates an about equal probability of transfer on the way in and out.…”

Electron Capture in Collisions of Slow Highly Charged Ions with an Atom and a Molecule: Processes and Fragmentation Dynamics

“…Alternatively, as mentioned in the introduction, the RIMS was also used [6,7,19]. The incident beam was colliding a supersonic gas jet in order to have target atoms initially monocinetic.…”

“…For single electron capture (SEC), energy gain spectroscopy [4], photon spectroscopy [5] and recoil ion momentum spectroscopy (RIMS) [6,7] have been used extensively to measure with good accuracy total, partial and differential cross sections. In parallel, theoretical methods, such as the classical overbarrier (COB) model [8], the Landau-Zener model [9], the classical trajectory Monte Carlo (CTMC) model [10], and molecular expansion close-coupling methods [11] have been developed.…”