Over-the-barrier electron detachment in the hydrogen negative ion

Two-photon detachment of the negative chlorine ion.

Three-photon detachment of electrons from the fluorine negative ion

Absolute three-photon detachment cross sections are calculated for the fluorine negative ion within the lowest-order perturbation theory. The Dyson equation of the atomic many-body theory is used to obtain the ground-state 2p wavefunction with correct asymptotic behaviour, corresponding to the true (experimental) binding energy. We show that in accordance with the adiabatic theory (Gribakin and...

the u.s. policy in central asia and its impact on the colored revolutions in the region (the case study of tulip revolution in kyrgyzstan)

چکیده ندارد.

Electron detachment dissociation and negative ion infrared multiphoton dissociation of electrosprayed intact proteins.

In top-down proteomics, intact gaseous proteins are fragmented in a mass spectrometer by, e.g., electron capture dissociation (ECD) to obtain structural information. By far, most top-down approaches involve dissociation of protein cations. However, in electrospray ionization of phosphoproteins, the high acidity of phosphate may contribute to the formation of intramolecular hydrogen bonds or sal...

Gas Flow Influence on Negative Hydrogen Ion Generation within the Microwave-driven Negative Ion Source*

H ion was generated through two processes within a volume Csfree source. The density of molecule hydrogen gas will impact on the electron temperature within the primary discharge chamber that will influence the population of vibrational excited H2. Within the extraction region, the interaction between molecule hydrogen and H ion will is cause the dissociation of negative ion. To better understa...