论文部分内容阅读
引言近几年来,在地表进行的γ射线测量,因其方法简便,所以和α径迹法同时用于活断层调查方面。但从调查结果来看,活断层并不一定与γ射线量对应地很好。此次一开始也没有详细研究测定方法,而是用以往的方法对活断层进行了调查,所以一直没有得出确切的结果。这是因为受到各种干扰,即使在没有活断层的地方测定值的离散也很大,这其中可能包含着活断层上应有的异常值。我们认为,只有将这种干扰控制到最小限度,才能提高利用γ射线测量调查活断层的有效性。为了尽量得到干扰小的数据,此次对γ射线测量方法进行了详细地分析研究,进一步考虑γ射线测量在活断层调查中究竞有多大程度的有效性。测量方法的研究测量用的仪器是阿罗卡(译音)公司制造的γ射线闪烁放射性测量仪。为了减少干扰,首先依次检查认为是干扰的各种因素。
Introduction In recent years, γ-ray measurements on the earth’s surface have been used in active fault surveys in conjunction with α-track methods because of their simplicity. However, from the survey results, the active fault does not necessarily correspond to the amount of γ-rays well. This time from the very beginning, there was no detailed study of the determination method, but the conventional method was used to investigate the active fault, so exact results have not been obtained. This is because, subject to various disturbances, the measured values are quite discrete even where there is no active fault, and this may include the outliers that are expected on the active fault. We believe that only by controlling this interference to a minimum can we improve the effectiveness of surveying active faults using gamma-ray measurements. In order to get as few interfering data as possible, the method of γ-ray measurement was analyzed and studied in detail, and the degree of effectiveness of γ-ray measurement in the active fault survey was further considered. Measurement method The measurement instrument was a gamma ray scintillation radioactivity measuring instrument manufactured by Aroconic. In order to reduce interference, first check the various factors considered as interference.