Goossens O, Vanhavere F, Leys N, De Boever P, O'Sullivan D, Zhou D, Spurny F, Yukihara E G, Gaza R, McKeever S W S
SCK.CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium.
Radiat Prot Dosimetry. 2006;120(1-4):433-7. doi: 10.1093/rpd/nci652. Epub 2006 Apr 27.
The laboratory of Microbiology at SCK.CEN, in collaboration with different universities, participates in several ESA programmes with bacterial experiments that are carried out in the International Space Station (ISS). The main objective of these programmes is to study the effects of space flight conditions such as microgravity and cosmic radiation on the general behaviour of model bacteria. To measure the radiation doses received by the bacteria, different detectors accompanied the microbiological experiments. The results obtained during two space flight missions are discussed. This dosimetry experiment was a collaboration between different institutes so that the doses could be estimated by different techniques. For measurement of the high linear energy transfer (LET) doses (>10 keV microm(-1)), two types of etched track detectors were used. The low LET part of the spectrum was measured by three types of thermoluminescent detectors ((7)LiF:Mg,Ti; (7)LiF:Mg,Cu,P; Al(2)O(3):C) and by the optically stimulated luminescence technique using Al(2)O(3):C detectors.
SCK.CEN的微生物学实验室与不同大学合作，参与了欧洲航天局的多个项目，这些项目包含在国际空间站（ISS）上进行的细菌实验。这些项目的主要目标是研究太空飞行条件，如微重力和宇宙辐射对模式细菌一般行为的影响。为了测量细菌所接受的辐射剂量，不同的探测器伴随微生物学实验一同进行。本文讨论了在两次太空飞行任务中获得的结果。此次剂量测定实验是不同机构之间的合作，以便能够通过不同技术估算剂量。对于高传能线密度（LET）剂量（>10 keV·μm⁻¹）的测量，使用了两种类型的蚀刻径迹探测器。光谱的低LET部分则通过三种类型的热释光探测器（（⁷）LiF:Mg,Ti；（⁷）LiF:Mg,Cu,P；Al₂O₃:C）以及使用Al₂O₃:C探测器的光激发发光技术进行测量。
