Formerly of the Health Physics Division, United Kingdom Atomic Energy Authority (UKAEA) Research Group, Atomic Energy Research Establishment, Harwell, Berkshire, United Kingdom.
J Radiol Prot. 2020 Jun;40(2):633-645. doi: 10.1088/1361-6498/ab70cc. Epub 2020 May 27.
A fire in a nuclear reactor at Windscale Works (Sellafield, England) in October 1957 led to an uncontrolled aerial release of radionuclides. At the time of the accident air was sampled at various locations in Europe to monitor atmospheric pollution, and the opportunity was taken to measure the sampling filters for activity concentrations of iodine-131, caesium-137 and polonium-210 at the Harwell research establishment (United Kingdom); when it was not possible to perform measurements at Harwell, original measurement data were supplied. This programme of activity measurements was performed in the context of work by the Advisory Committee on Nuclear Radiation of the International Geophysical Year (IGY; July 1957-December 1958). The International Geophysical Year was an international programme of research into a comprehensive range of geophysical phenomena. The results of this measurement programme were originally reported in Harwell Memorandum AERE-M857 (1961) and this Harwell report is reproduced in this paper because of its historical interest and because it is no longer readily accessible to researchers.
1957 年 10 月，英格兰塞拉菲尔德的温德斯凯尔工厂（Windscale Works）的核反应堆发生火灾，导致放射性核素失控释放到空气中。事故发生时，欧洲各地的空气样本被采集以监测大气污染，同时还在英国的哈威尔研究机构（Harwell research establishment）测量了碘-131、铯-137 和钋-210 的采样过滤器的活度浓度；在哈威尔无法进行测量的情况下，提供了原始的测量数据。该活性测量计划是在国际地球物理年（IGY）核辐射咨询委员会（Advisory Committee on Nuclear Radiation）的工作框架内进行的（1957 年 7 月至 1958 年 12 月）。国际地球物理年是一项针对广泛地球物理现象的国际研究计划。该测量计划的结果最初发表在哈威尔备忘录 AERE-M857（1961 年）中，由于其历史意义以及研究人员不再容易获得该报告，因此本文重现了该哈威尔报告。
