Determination of the ionization gauge sensitivity using the relative ionization cross-section

Vacuum ◽  
1975 ◽  
Vol 25 (9-10) ◽  
pp. 431-435 ◽  
Author(s):  
F Nakao
Keyword(s):  
Cross Section ◽  
Ionization Cross Section ◽  
Ionization Cross ◽  
Ionization Gauge

Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser

2011 ◽  
Vol 44 (16) ◽  
pp. 161001 ◽  
Author(s):  
Takahiro Sato ◽  
Atsushi Iwasaki ◽  
Kazuki Ishibashi ◽  
Tomoya Okino ◽  
Kaoru Yamanouchi ◽  
...  
Keyword(s):  
Cross Section ◽  
Free Electron ◽  
Free Electron Laser ◽  
Ionization Cross Section ◽  
Ionization Cross ◽  
Two Photon ◽  
Photon Ionization ◽  
The Absolute

Determination of ionization cross section by electron spectroscopic imaging

1988 ◽  
Vol 46 ◽  
pp. 536-537
Author(s):  
G.T. Simon ◽  
Y.M. Heng ◽  
F.P. Ottensmeyer
Keyword(s):  
Energy Loss ◽  
Cross Section ◽  
Ionization Cross Section ◽  
Unit Area ◽  
Core Loss ◽  
Ionization Cross ◽  
Image Position ◽  
Electron Energy Loss ◽  
Ionization Edge

Electron energy loss spectroscopy (EELS) has become a significant technique for high resolution elemental microanalysis and mapping. Theoretically, quantitative analysis requires only one simple equation:Eqn.(1)where N is the number of atoms per unit area analysed; I(net)(a,δ) is the core loss intensity integrated over an energy range δ beyond the ionization edge and with a collection angle a; I(total) is the total intensity integrated beneath the whole spectrum; σ(a,δ) is the corresponding ionization cross section.To obtain I(net) according to current convention and some theoretical justification, the simplest way of removing the background beneath an ionization edge is simply fitting at least two pre-edge measurements to the equation of I=AE-r, where I is the intensity of electrons that have energy loss E; A and r are constants to be determined from the fitted pre-edge region. Several other methods have also been derived for better accuracy in specific applications.

Theoretical determination of the ionization cross-section of water

2002 ◽  
Vol 577 (1) ◽  
pp. 17-33 ◽  
Author(s):  
H. Dupin ◽  
I. Baraille ◽  
C. Larrieu ◽  
M. Rérat ◽  
A. Dargelos
Keyword(s):  
Cross Section ◽  
Ionization Cross Section ◽  
Theoretical Determination ◽  
Ionization Cross
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