摘要
本文讨论了外供铀矿石的计价方法问题,认为关键的技术问题是要做到全截面等几率实物取样。结合逆推放射性换算系数,可消除系统误差;对所有供矿矿石进行γ强度测量,可降低偶然误差,达到分列分批地、比较准确地给出矿石品位,每年γ品位换算系数的平均精密度为3％。
Some sampling methods for uranium ore are discussed in this paper. The proposed sampling method is mainly based on the radiometric sampling of all lots checked with the material sampling of some lots of ore as reference. Using the reduction coefficient for radioactivity, the systematic error can be eliminated, and by measuring the Y intensity of all lots of uranium ore supplied to mill, the casual error can be reduced. With the proposed radiometric sampling method the grade of uranium ore is determined accurately, and the annual average precision of Y-grade reduction coefficient is 3%.
出处
《铀矿冶》
CAS
1990年第3期7-13,共7页
Uranium Mining and Metallurgy
