Kramer G H, Meyerhof D P
School of Molecular Sciences, University of Sussex, U.K.
Can J Med Radiat Technol. 1994 May;25(2):61-3.
This article is the third of a five-part series covering various aspects of occupational thyroid monitoring. This article introduces the basic concepts required to understand the procedure for determining the counting efficiency of a thyroid detector. The B.R.M.D. thyroid-neck phantom is used as the calibration source. A procedure for personnel monitoring is also discussed and the concept of Minimum Detectable Activity (MDA) is introduced. The last two articles in this series discuss energy calibration, counting system optimization based on a single-channel analyzer and placement error minimization.
本文是一个涵盖职业性甲状腺监测各个方面的五部分系列文章中的第三篇。本文介绍了理解甲状腺探测器计数效率测定程序所需的基本概念。使用B.R.M.D.甲状腺颈部模型作为校准源。还讨论了人员监测程序，并引入了最小可探测活度（MDA）的概念。本系列的最后两篇文章讨论能量校准、基于单通道分析仪的计数系统优化以及最小化放置误差。
