化合物和合金中离子投影射程分布矩的计算(Ⅰ)——重离子(Z1>10)的射程分布矩

本文采用改进了的核散射函数计算了12种离子在非晶Al₂O₃,SiO₂,20/25/Nb不锈钢、UO₂和LiNbO₃等材料中的投影射程分布一次至三次矩。给出了能量范围从5keV至1MeV的离子在上述材料中的理论计算结果。将计算值与近几年的实验测量结果及Gibbons等人和Winterbon的理论计算进行了比较。结果表明,我们得到了与实验符合得更好的理论值。文中较详细地介绍了化合物和合金材料中射程分布矩的计算方法,并对改进计算精度等问题进行了简要的讨论。关键词：

CALCULATION OF PROJECT ION-RANGE DISTRIBUTION MOMENTS IN COMPOUNDS AND ALLOYS (I)——RANGE DISTRIBUTION MOMENTS FOR HEAVY IONS (Z1>10)

Project range and range distribution moments up to third order for twelve ion species implanted into five different substrates (such as amorphous A1₂O₃, SiO₂, UO₂, LiNbO₃ and 20/25/Nb stainless steel) are calculated using an improved nuclear scattering function developed recently. Some results are given for the ions considered with energy range from 5 keV to 1 MeV. The present theoretical results are compared with those published by Gibbons et al. and Winterbon, and our results are proved to agree with the recent experimental measurements more closely. The calculation method which deals with the range distribution moments in amorphous compounds and alloys is presented in some detail, and a brief discussion on the calculation accuracy is given.