In an
inner-shell ionization process the incoming electron (the blue ball) collides with the atom (the
yellow blob)
and ejects one of the atom's inner-shell (K shell) electrons. The excited
atom then can emit a characteristic (K) x-ray (the red
ball).
The cross section
for ionization of the inner shell of an atom by an electron can be measured
by observing the number of characteristic x-rays produced.
We can choose
to look at just x-rays, and measure what we call the total cross section.
Or, we can look at both an x-ray and an electron simultaneously in a "coincidence
experiment."
Some
of our older publications on Inner-shell Ionization and Characteristic x-ray
production
"The Influence of Chemical Environment on X-ray Rate in the X-ray Fluorescence
of Rock Samples", (with R. Wood), Nucl. Inst. Meth. Phys. Res.B 40/41,
635 (1989).
"Molecular Excitation Effects on the Absolute Sulfur K X-ray Intensity
in Electron Bombardment and Photoionization of SF6 and H2S,"(with H.
Lehtihet), Phys. Rev. A.40, 455 (1989).
"K X-ray Yield of Sulfur in H2S and SF6 from Photoionization"(with
R. Ambrose), Phys. Letters A 128, 71 (1988).
"Additivity of K X-ray yield of Chlorine in CHClF2, CCl2F2, C2Cl4 F2
, and CCl3F" (with S. Salehkoutahi), J. Elec. Spec. 46, 349 (1988).
"Total Cross Sections for K Shell Ionization from Electron Bombardment"
(with G. Westbrook), Nucl. Inst. Meth. Phys. Res.B24/25, 196 (1987).
"Chemical Effect on the K X-ray Yield of Sulfur" (with L. Estep),Phys.
Rev. A 34, 2408 (1986).
"Characteristic X-ray Production by Electron Bombardment of Argon, Krypton,
and Xenon from 4 to 10 keV" (with M. Semaan), Phys. Rev. A 26, 3147 (1982).
"Semi-empirical Analysis of K-shell Ionization," Phys. Rev. A13,
1278 (1976).
"K-Shell Ionization by High Energy Electrons," Phys. Letters 39A,
375 (1972).
"The K /K X-ray Intensity Ratios from Electron Bombardment" (with
V. Mistry), Nucl. Phys. A164, 219 (1971).
"K /K X-ray Intensity Ratios for 57 Z 70 from Electron Bombardment"
(with V. Mistry), Phys. Letters 36A, 221 (1971).
"Inner Shell Ionization of Copper, Silver and Gold by Electron Bombardment"
(with D. Davis and V. Mistry), Phys. Letters 38A, 221 (1971).
Explore
some bremsstrahlung areas
Other
areas of research interest: