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Radiation Protection Dosimetry Advance Access originally published online on April 27, 2006
Radiation Protection Dosimetry 2006 120(1-4):433-437; doi:10.1093/rpd/nci652
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© The Author 2006. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

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

O. Goossens1, F. Vanhavere1,*, N. Leys1, P. De Boever1, D. O'Sullivan2, D. Zhou2, F. Spurny3, E. G. Yukihara4, R. Gaza4 and S. W. S. McKeever4

1 SCKbulletCEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium
2 School of Cosmic Physics, Institute for Advanced Studies, 5 Merrion Square, Dublin, Republic of Ireland
3 Department of Radiation Dosimetry, NPI AS CR, Na Truhlarce 39/64, Praha 8 180 86, Czech Republic
4 Department of Physics, Oklahoma State University, Stillwater, OK 74078-3072, USA

* Corresponding author: fvanhave{at}sckcen.be

The laboratory of Microbiology at SCKbulletCEN, 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 µm–1), two types of etched track detectors were used. The low LET part of the spectrum was measured by three types of thermoluminescent detectors (7LiF:Mg,Ti; 7LiF:Mg,Cu,P; Al2O3:C) and by the optically stimulated luminescence technique using Al2O3:C detectors.


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