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用伴随粒子飞行时间法测量了１４．７ＭｅＶ中子在６Ｌｉ和７Ｌｉ核上的弹性散射截面，并用蒙特卡罗方法对中子在样品中的通量衰减、多次散射作了修正．本文工作与他人工作以及理论数据作了比较．给出了截面的勒让德系数；截面实验点总误差在１０％到１５％之间，其中统计误差为１％－５％．
The elastic scattering cross sections of 14.7MeV neutrons on 6Li and 7Li nuclei were measured by the accompanying particle-time-of-flight method. The flux attenuation and multiplicative scattering of neutron in the samples were corrected by Monte-Carlo method. This work is compared with other people’s work and theoretical data. The Legendre coefficient of the section is given. The total error of the section test point is between 10% and 15%, and the statistical error is between 1% and 5%.