A new method for the measurement of the mean etch-able fission track length and of extremely high fission track densities in minerals

Nuclear Track Detection Pub Date : 1977-06-01 DOI:10.1016/0145-224X(77)90005-9

E. Bertel, T.D. Märk, M. Pahl

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引用次数: 10

Abstract

In the present study a new and relatively simple method has been developed to measure the ratio of thermally reduced track length to unaffected track length l_s/l_i. The method consists of counting track densities on different parallel planes cut from a single apatite sample, instead of measuring track lengths of a single surface plane; thus the desired ratio of lengths can be derived from ratios of track densities only. This method has been applied to samples of Durango apatite, yielding an averaged ratio of $l_{i} / l_{s}$ =1.14±0.06. The result is in good agreement with values we obtained by other independent methods of 1.12±0.05 and 1.13 ±0.05, respectively.

The present method, in addition, can also be used to determine extremely high fission track densities which otherwise would be too high for optical counting.

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一种测量矿物中平均可蚀裂变径迹长度和极高裂变径迹密度的新方法

本研究提出了一种新的、相对简单的方法来测量热还原轨道长度与未影响轨道长度之比。该方法包括计算从单个磷灰石样品切割的不同平行平面上的轨道密度，而不是测量单个表面平面的轨道长度;因此，所需的长度比只能由轨道密度比推导出来。该方法已应用于杜兰戈磷灰石样品，得到li/ls=1.14±0.06的平均比值。结果与其他独立方法分别为1.12±0.05和1.13±0.05的结果吻合较好。此外，本方法还可用于测定极高的裂变径迹密度，否则光学计数将过高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nuclear Track Detection

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