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目的:在20×10公里广阔矿区进行放射性水平调查,如何用优选法选点,基本反映全面情况,进行放射卫生评价。方法:采用平分法(考虑到均匀分散性)结合瞎子爬山法,发现放射性水平高的点则爬山测量,找到最高点。经过:外照射水平在广阔矿区进行逐点逐段测量,测得各点、段的放射性水平(微伦/小时),测得较高点则向各方向爬山直至达最高或逐渐下降为止。用此法曾寻找到三堆(约五立方米)原地质队采来之矿砂样品。放射性水平达400—600微伦/小时(一
OBJECTIVE: To conduct radioactive level survey in the vast mining area of 20 × 10 km and how to choose the optimal method to basically reflect the overall situation for radiation health evaluation. Methods: The method of bisecting (taking into account the uniform dispersion) combined with the blind hill-climbing method, found that the high level of radioactive point of the mountain climbing measurements to find the highest point. After: The level of external exposure is measured point by point and section by section in the vast mining area. The radioactivity level (microlight / hour) at each point and section is measured. The highest point is determined by climbing the mountain in all directions until the maximum or gradual descent. This method has been used to find three piles (about five cubic meters) of the original geological team mining ore samples taken. Radioactive levels of 400-600 micro-Lun / hour (one