Environmental gamma dose measurements in Mexico City using TLD

被引：17

作者：

ZarateMorales, A ^{[1
]}

Buenfil, AE ^{[1
]}

机构：

[1] HARSHAW BICRON, SOLON, OH 44139 USA

来源：

HEALTH PHYSICS | 1996年 / 71卷 / 03期

关键词：

gamma radiation; dosimetry; thermoluminescent; environmental assessment; radioactivity; environmental;

D O I：

10.1097/00004032-199609000-00013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this work is to measure the gamma dose component of environmental radiation in Mexico City's metropolitan area. To perform the TL dosimetry, CaF2:Dy, CaF2:Mn, alpha-Al(2)0(3):C and LiF:Mg, Cu, P crystals were used. The values of environmental gamma dose rate measured ranged between 83 and 112 nGy h(-1) for the time interval going from January to August 1994. Outdoor dose rates were 85 nGy h(-1) +/- 2% for city sites having soil of either volcanic or lacunar origin; this rate was 107 nGy h(-1) +/- 2% at a nearby hill belonging to a volcanic chain. Indoor rates were about 20% higher than outdoor ones at the same location.

引用

页码：358 / 361

页数：4

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