Radiation dosimetry for microbial experiments in the International Space Station using different etched track and luminescent detectors

被引:38
作者
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.
机构
[1] CEN SCK, Belgian Nucl Res Ctr, B-2400 Mol, Belgium
[2] Inst Adv Studies, Sch Cosm Phys, Dublin, Ireland
[3] NPI AS CR, Dept Radiat Dosimetry, CZ-18086 Prague 8, Czech Republic
[4] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA
关键词
D O I
10.1093/rpd/nci652
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The laboratory of Microbiology at SCK < bullet > 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 mu m(-1)), two types of etched track detectors were used. The low LET part of the spectrum was measured by three types of thermoluminescent detectors ((LiF)-Li-7:Mg,Ti; (LiF)-Li-7:Mg,Cu,P; Al2O3:C) and by the optically stimulated luminescence technique using Al2O3:C detectors.
引用
收藏
页码:433 / 437
页数:5
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