Electron impact measurement on some organomercury compounds

1962 ◽  
Vol 58 ◽  
pp. 1905 ◽  
Author(s):  
B. G. Gowenlock ◽  
R. M. Haynes ◽  
J. R. Majer
Keyword(s):  
Electron Impact ◽  
Impact Measurement ◽  
Organomercury Compounds

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.

Arthritis Impact Measurement Scales Short Version

1991 ◽  
Author(s):  
Christopher D. Lorish ◽  
Noval Abraham ◽  
Janet S. Austin ◽  
Laurence A. Bradley ◽  
Graciela S. Alarcón
Keyword(s):  
Short Version ◽  
Impact Measurement ◽  
Measurement Scales

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
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