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矿石体重是矿床储量计算中必不可少的参数。体重测定中的宽束伽玛射线吸收法相对于石腊法、全巷法具有代表性强、功效高等优点,因此在铀矿床的勘探中得到广泛的应用。该方法测定结果的可靠性主要决定于强度测定的准确性和测点间吸收层厚度计算的正确性。对于前者,只要保证仪器的良好性能,是不难做到的;但对于后者由于目前风钻技术条件的限制,往往使欲测的两个炮孔不在同一平面内。在这种情况下,至今还没有一个较简单准确的
Ore weight is an indispensable parameter in the calculation of ore reserves. Compared with the paraffin method, the wide beam gamma ray absorption method in weight measurement has the advantages of strong representativeness and high efficiency, so it has been widely used in the exploration of uranium deposits. The reliability of the method is mainly determined by the accuracy of the intensity measurement and the calculation of the thickness of the absorbent layer between measuring points. As for the former, as long as the good performance of the instrument is guaranteed, it is not hard to do it; but for the latter, due to the current technological limitations of the pneumatic drill, the two drilled holes to be measured are often not in the same plane. In this case, so far no one is more simple and accurate