Calculated absolute cross section for the electron-impact ionisation of simple molecular ions

2003 ◽  
Vol 223-224 ◽  
pp. 639-646 ◽  
Author(s):  
H Deutsch ◽  
K Becker ◽  
P Defrance ◽  
U Onthong ◽  
M Probst ◽  
...  
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Molecular Ions ◽  
Absolute Cross Section ◽  
Impact Ionisation

Absolute cross-section measurements for electron impact ionisation of Li-like N4+, O5+and Ne7+ions

1990 ◽  
Vol 23 (14) ◽  
pp. 2333-2342 ◽  
Author(s):  
P Defrance ◽  
S Chantrenne ◽  
S Rachafi ◽  
D S Belic ◽  
J Jureta ◽  
...  
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Absolute Cross Section ◽  
Impact Ionisation

Absolute cross-section measurements for electron-impact ionization of Na-like ions—Mg+,Al2+, andSi3+

1982 ◽  
Vol 25 (1) ◽  
pp. 143-153 ◽  
Author(s):  
D. H. Crandall ◽  
R. A. Phaneuf ◽  
R. A. Falk ◽  
D. S. Belic ◽  
G. H. Dunn
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Impact Ionization ◽  
Electron Impact Ionization ◽  
Absolute Cross Section

Absolute cross-section measurements for electron-impact ionization of doubly charged ionsTi2+,Fe2+,Ar2+,Cl2+, andF2+

1985 ◽  
Vol 31 (5) ◽  
pp. 2905-2913 ◽  
Author(s):  
D. W. Mueller ◽  
T. J. Morgan ◽  
G. H. Dunn ◽  
D. C. Gregory ◽  
D. H. Crandall
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Impact Ionization ◽  
Electron Impact Ionization ◽  
Absolute Cross Section ◽  
Doubly Charged

Absolute cross section forSi2+(3s3p3Po→3s3p1Po)electron-impact excitation

2003 ◽  
Vol 67 (5) ◽  
Author(s):  
P. H. Janzen ◽  
L. D. Gardner ◽  
D. B. Reisenfeld ◽  
J. L. Kohl
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Impact Excitation ◽  
Electron Impact Excitation ◽  
Absolute Cross Section

Mass spectrometry of some furanocoumarins

1979 ◽  
Vol 57 (15) ◽  
pp. 1995-2003 ◽  
Author(s):  
Sheng-Yuh Tang ◽  
John C. Mcgowan ◽  
Marsha Singh ◽  
Paul Galatsis ◽  
Brian E. Ellis ◽  
...  
Keyword(s):  
Electron Impact ◽  
Mass Spectra ◽  
Kinetic Energy Release ◽  
Molecular Ions ◽  
Structural Isomers ◽  
Molecular Systems ◽  
Fragment Ions ◽  
Fragmentation Mechanisms ◽  
Impact Ionisation ◽  
Partial Success

The mass spectra of two isomeric methoxyfuranocoumarins have been investigated using electron-impact ionisation. Unambiguous distinction between the two isomers is possible through a combination of conventional mass spectra with collision-induced dissociations of the molecular ions and of selected fragment ions. The fragmentation mechanisms of these and related molecular systems were investigated in an attempt to identify the fate of each oxygen atom under electron-impact conditions. To this end, 2-pyrone, benzpyrone (coumarin), benzofuran, and some of its structural isomers were synthesised and studied via metastable spectra, collisionally activated spectra, appearance potentials, and kinetic energy release. Only partial success was achieved in this investigation, but it was possible to write a mechanistic scheme consistent with the present findings and literature data. If valid, this scheme permits identification of two of the four oxygen atoms in the methoxyfuranocoumarins.

A measurement of the cross section of electron impact ionisation of Ne+

1984 ◽  
Vol 17 (18) ◽  
pp. L621-L624 ◽  
Author(s):  
M J Diserens ◽  
M F A Harrison ◽  
A C H Smith
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Impact Ionisation ◽  
The Cross
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