K-shell ionization cross sections of Zr element at energies from 20keV to 34keV
Through bombarding the Zr target by the electrons at energies from 20keV to 34 keV. the K-shell ionization cross section of Zr element is obtained. These data are reported for the first time in the world. In the experiment, the influence of the electrons reflected from the thick substrate was corrected by means of a bipartition model of the electron transport. The mean path of the electrons passing through the Zr target of 24. 3ig/cm' mass thickness is calculated by the EGS4 program of Monte Carlo techniquel.