Inner-Shell Ionization by Transition Radiation
Recently it has been suggested1 that photons of the transition radiation might cause K-shell ionization to such an amount that the number of vacancies are not any longer negligible compared to the number caused by ultra relativistic electrons. These assumptions are based on the observation of the X-ray yield following ionization by e+, π+ and p beams of 5 GeV/c and the calculation of the particle and the transition-radiation photon induced cross section.
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