Spectrometric measurements of 131I and 99mTc activity in thyroid

被引：4
|
作者：
Osko, J.
Golnik, N.
Pliszczynski, T.
机构：
[1] Warsaw Univ Technol, Inst Precis & Biomed Engn, PL-02525 Warsaw, Poland
[2] Inst Atom Energy, PL-05400 Otwock, Poland
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2007年 / 580卷 / 01期
关键词：
activity measurements; thyroid; iodine; technetium;
D O I：
10.1016/j.nima.2007.05.238
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A modified method for calibration of the thyroid counter with I-131 was investigated in order to take into account the depth of the thyroid in human neck. The depth of the I-131 source was determined from the ratio of the counting rate in 364 keV peak to the counting rate in the energy band of 110-140 keV. Dependence of detector efficiency on the source depth was determined. The results were used for analysis of the energy spectra recorded for hospital patients. Similar method was investigated also for Tc-99m radiation source. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：578 / 581
页数：4
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