多探头系统各测量道获得的检测结果的可比性,只有在下述前提下才能成立:即各测量道是相同的,或经对各道的差异进行校正之后,各道对同一样品的检测结果相近,由此引起的道间测量误差可以忽略不计。本文介绍在微机多探头γ计数器中,解决道间差异的归一化校正和各道探测效率缓慢漂移的校正两个方面问题的构思、量值关系和实现步骤。 The comparability of the test results obtained with the multi-probe system measurement channels is only valid if the measurement channels are the same or after the differences of the individual channels are corrected, the test results of the same samples are similar to each other , Resulting in the measurement error between channels is negligible. In this paper, we introduce the concept, the relationship of magnitude and the realization of the two problems of normalization correction to the difference between channels and the correction of slow drift of detection efficiency in the multi-probe multi-probe γ counter.