INVESTIGATIONS ON THE MCS(2)(-ION MASS-SPECTROMETRY() FORMATION IN SECONDARY)

Citation
T. Mootz et al., INVESTIGATIONS ON THE MCS(2)(-ION MASS-SPECTROMETRY() FORMATION IN SECONDARY), International journal of mass spectrometry and ion processes, 156(1-2), 1996, pp. 1-10
Citations number
26
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
ISSN journal
01681176
Volume
156
Issue
1-2
Year of publication
1996
Pages
1 - 10
Database
ISI
SICI code
0168-1176(1996)156:1-2<1:IOTMMF>2.0.ZU;2-O
Abstract
The formation of MCs(2)(+) secondary ions under Cs+ bombardment of sev eral elemental surfaces M was studied. In conjunction with their respe ctive mass signals the energy distributions of the secondary MCs(+), C s+, Cs-2(+) ions and the neutral M(0) atoms corroborate an MCs(2)(+) f ormation mechanism via recombination of an already built MCs(0) molecu le with a Cs+ ion. Evaluation of the mass signals reveals that the spa tial and temporal correlation between two partners forming the MCs(2)( +) molecule is strongly enhanced in comparison with the respective cor relation of M(0) and Cs+, which is generally agreed to form the MCs(+) molecule. The surprisingly broad energy distributions of Cs-2(+) are determined by the broad distribution of the neutral M(0) atoms which a re essentially implicated in the Cs-2(+) formation process.