希腊切尔诺贝利沉降物的土壤采样与137铯分析。

Soil sampling and 137Cs analysis of the Chernobyl fallout in Greece.

作者信息

Simopoulos S E

机构信息

Nuclear Engineering Section, National Technical University of Athens, Greece.

出版信息

Int J Rad Appl Instrum A. 1989;40(7):607-13. doi: 10.1016/0883-2889(89)90116-0.

DOI:10.1016/0883-2889(89)90116-0

PMID:2551859

Abstract

A total of 1242 samples of soil, collected over Greece, during the period May-November 1986, were counted and analysed for 137Cs from Chernobyl fallout. The counting was performed using a NaI detector on-line to a microcomputer, moreover, 252 of the samples were also analysed using Ge detectors, for inter-comparison and also for the assessment of other long-lived isotopes in the fallout. The results show that 137Cs fallout from Chernobyl presents a remarkable geographical variability. The evaluated ground activity due to 137Cs deposition ranges between 0.01 and 137 kBq/m2.

摘要

1986年5月至11月期间，在希腊各地共采集了1242份土壤样本，对其中来自切尔诺贝利沉降物的137铯进行了计数和分析。计数使用与微型计算机联机的碘化钠探测器进行，此外，还使用锗探测器对252份样本进行了分析，以进行相互比较，并评估沉降物中的其他长寿命同位素。结果表明，切尔诺贝利的137铯沉降物呈现出显著的地理变异性。因137铯沉积而评估的地面活度范围在0.01至137千贝克勒尔/平方米之间。