一种高纯锗能谱测井仪相对效率刻度方法

A NEW METHOD FOR EFFICIENCY CALIBRATION OF BOREHOLE LOGGING EQUIPMENT WITH HPGe DETECTOR

摘要: 介绍了一种用於多元素分析的高纯锗测井系统相对效率刻度的方法,即所谓“自刻度”方法。这种刻度方法仅依赖於被测对象自身的中子俘获γ射线谱,不需要任何标准样品或模拟刻度井,适用于任何高纯锗探测系统。该文给出了用自刻度方法得到的三个分析结果。
- 测井仪 ,
- 多元素分析 ,
- 效率刻度
Abstract: A new method known as self-calibration from reletive efficiency calibration of borehole logging equipment with HPGe detector is described. The calibration method which only based on the measured neutron capture Gamma ray spectrum without any standard sample or simuleted calibration can well be used in reletive efficiency calibration of any multielemental analysis system with HPGe detector. Three analysis results obtained with the self-calibration method are given.

[1]	Senftle F.E. et al., Mining Engineering (AIME), 30, 666 (1978).
[2]	Mikesell, J. L. et al., Xucl. Instrum. Methods, 215, 561 (1983).
[3]	Clayton, C. G. et al., Int. J. Appl. Radiat. Isot., 34, 83 (1983).
[4]	Wormald, M. R. et al., Int. J. Appl. Radial. Isot., 34, 71(1983).
[5]	Chien Chung, et al., Nucl. Instrum. Methods, A 267 223(1988).
[6]	Evens, L. G. et al., Nucl. Instrum. Methods, 193, 353(1982).
[7]	Zhao Jingqi, Liu Jishi et al., Nucl. Geophys., 5, 122(1991).