能量范围从20keV到34keV的锆元素K壳层电离截面
K-shell ionization cross sections of zr element at energies from 20keV to 34keV
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摘要: 用20~34keV能量的电子束轰击锆靶,从而测得锆元素的K壳层电离截面。这些数据是国际上首次报道。在实验中采用电子输运双群模型修正了由厚衬底产生的反射电子对计数的影响。同时用蒙特卡罗EGS4程序计算了电子在质量厚度为24.3mg/cm2的锆靶中的平均路径长度。Abstract: 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 24.3m g/cm2 mass thickness is calculated by the EGS4 program of Monte Carlo techniquesl.
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Key words:
- ionization cross sections /
- electron impact /
- electron transport
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