Electron-impact-induced tryptophan molecule fragmentation

2015 ◽  
Vol 69 (1) ◽  
Author(s):  
Jelena Tamuliene ◽  
Liudmila G. Romanova ◽  
Vasyl S. Vukstich ◽  
Alexander V. Papp ◽  
Alexander V. Snegursky
Keyword(s):  
Electron Impact ◽  
Tryptophan Molecule

scholarly journals Fragmentation of tryptophan molecule by low-energy electron-impact

2015 ◽  
Vol 635 (3) ◽  
pp. 032048
Author(s):  
A V Papp ◽  
J Tamuliene ◽  
L G Romanova ◽  
V S Vukstich ◽  
S S Demesh ◽  
...  
Keyword(s):  
Electron Impact ◽  
Low Energy ◽  
Energy Electron ◽  
Low Energy Electron ◽  
Tryptophan Molecule

Mass-spectrometric study of the electron-impact-induced fragmentation of the tryptophan molecule

2014 ◽  
Vol 40 (3) ◽  
pp. 263-266 ◽  
Author(s):  
V. S. Vukstich ◽  
L. G. Romanova ◽  
I. G. Megela ◽  
A. V. Snegursky
Keyword(s):  
Electron Impact ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study ◽  
Tryptophan Molecule

The measurement of inner-shell ionization cross aections by electron impact in a TEM

1992 ◽  
Vol 50 (2) ◽  
pp. 1266-1267
Author(s):  
Raynald Gauvin ◽  
Gilles L'Espérance
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Weight Fraction ◽  
Thin Foil ◽  
Specimen Thickness ◽  
Ionization Cross ◽  
Electron Dose ◽  
Total Electron ◽  
Inner Shell Ionization ◽  
Shell Ionization

Values of cross sections for ionization of inner-shell electrons by electron impact are required for electron probe microanalysis, Auger-electron spectroscopy and electron energy-loss spectroscopy. In this work, the results of the measurement of inner-shell ionization cross-sections by electron impact, Q, in a TEM are presented for the K shell.The measurement of QNi has been performed at 120 KeV in a TEM by measuring the net X-ray intensity of the Kα line of Ni, INi, which is related to QNi by the relation :(1)where i is the total electron dose, (Ω/4π)is the fractional solid angle, ω is the fluorescence yield, α is the relative intensity factor, ε is the Si (Li) detector efficiency, A is the atomic weight, ρ is the sample density, No is Avogadro's number, t' is the distance traveled by the electrons in the specimen which is equal to τ sec θ neglecting beam broadening where τ is the specimen thickness and θ is the angle between the electron beam and the normal of the thin foil and CNi is the weight fraction of Ni.

Dissociative excitation of molecules electron impact

1980 ◽  
Vol 77 ◽  
pp. 773-777 ◽  
Author(s):  
F.J. de Heer ◽  
H.A. Van Sprang ◽  
G.R. Mohlmann
Keyword(s):  
Electron Impact ◽  
Dissociative Excitation

Electron impact double ionization of neon

1993 ◽  
Vol 03 (C6) ◽  
pp. C6-117-C6-123 ◽  
Author(s):  
M. J. FORD ◽  
J. P. DOERING ◽  
J. W. COOPER ◽  
M. A. COPLAN ◽  
J. H. MOORE
Keyword(s):  
Electron Impact ◽  
Double Ionization

Electron impact excitation of Al XIII : Collision strengths and rate coefficients

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-309-Pr2-312
Author(s):  
K. M. Aggarwal ◽  
F. P. Keenan ◽  
S. J. Rose
Keyword(s):  
Electron Impact ◽  
Impact Excitation ◽  
Rate Coefficients ◽  
Electron Impact Excitation

EXPERIMENTS ON ELECTRON IMPACT EXCITATION AND DIELECTRONIC RECOMBINATION AT HARVARD-SMITHSONIAN

1989 ◽  
Vol 50 (C1) ◽  
pp. C1-405-C1-409
Author(s):  
L. D. GARDNER ◽  
J. L. KOHL ◽  
D. W. SAVIN ◽  
A. R. YOUNG
Keyword(s):  
Electron Impact ◽  
Dielectronic Recombination ◽  
Impact Excitation ◽  
Electron Impact Excitation
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