Dose distribution in the Russian Segment of the International Space Station

• Published in: Radiation protection dosimetry 2006-09, Vol.120 (1-4), p.446-449
• Main Authors: Hajek, M., Berger, T., Fugger, M., Fürstner, M., Vana, N., Akatov, Y., Shurshakov, V., Arkhangelsky, V.
• Format: Article
• Language: English
• Subjects: Algorithms; Body Burden; Computer Simulation; Cosmic Radiation; Dose-Response Relationship, Radiation; Models, Biological; Occupational Exposure - analysis; Radiation Dosage; Radiation Protection - instrumentation; Relative Biological Effectiveness; Reproducibility of Results; Russia; Sensitivity and Specificity; Space Flight - instrumentation; Space Flight - methods; Thermoluminescent Dosimetry - instrumentation; Thermoluminescent Dosimetry - methods
• ISSN: 0144-8420; 1742-3406
• DOI: 10.1093/rpd/nci566

Absorbed dose and average linear energy transfer (LET) were assessed by means of 7LiF:Mg,Ti (TLD-700) thermoluminescent (TL) detectors for different panels on-board the Russian Segment of the International Space Station in the timeframe between March and November 2002 (233 d). A technique is presented to correct the measured absorbed dose values for TL efficiency in the radiation climate on-board the spacecraft. Average LET is determined from the high-temperature TL emission in the TLD-700 glow curve and used as a parameter in the TL efficiency correction. Depending on the shielding distribution, the efficiency-corrected absorbed dose varies between 154 ± 5 μGy d−1 in panel no. 327 (core block ceiling) and 191 ± 3 μGy d−1 in panel no. 110 (core block central axis, floor). The experimental data are compared with the model calculations by using detailed shielding distributions and orbit parameters as inputs.