COMPARISON OF THREE UNIVERSAL CURVES FOR THE ESCAPE PROBABILITY OF X-RAY EXCITED ELECTRONS: I. THEORY, H. Ebel, R. Svagera, M.F. Ebel, W.S.M. Werner, pp. 380-385
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چکیده
In the course of photoelectric absorption of monoenergetic x-rays, electrons of kinetic energy Ekin=h I+E~ are released from the atoms. The probability w describes the first step of the rearrangement of the atoms towards the original electronic configuration by emission of characteristic x-radiation. Further electrons can be released from the atoms with probability l-u by an emission of one or even more Auger electrons. Auger electrons are characterized by defined kinetic energies. Thus, photoelectric absorption of monochromatic x-rays is responsible for the emission of a series of monoenergetic electrons from atoms. Besides photoelectric absorption, Compton scattering causes an additional contribution to electron emission. This kind of interaction of x-rays with matter is neglected due to the comparably small probability in the photon energy range from 0.5 keV up to approximately 30 keV.
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تاریخ انتشار 2003