Radiation dosimetry for microbial experiments in the international space station using different etched track and liminescent detectors

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Abstract

the laboratory o 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. The 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 7(LiF:Mgn Ti; 7LiF:Mg,Cu,P; Al2O3:C) and by the optical stimulated luminescence technique using Al2O3:C detectors.

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Original languageEnglish
Pages (from-to)433-437
JournalRadiation protection dosimetry
Volume120
Issue number1-4
DOIs
Publication statusPublished - 27 Apr 2006

Keywords

  • dosimetry, microbial experiments, space, luminescent

ID: 204542