Cosmic radiation studies by SSNTD stacks in the BIOPAN-6 project
- Paper number
IAC-08.A1.7.-A2.7.8
- Author
Ms. Beata Dudas, Hungarian Academy of Sciences KFKI Atomic Energy Research Institute, Hungary
- Coauthor
Mr. Jozsef Palfalvi, Hungarian Academy of Sciences KFKI Atomic Energy Research Institute, Hungary
- Coauthor
Dr. Julianna Szabo, Hungarian Academy of Sciences KFKI Atomic Energy Research Institute, Hungary
- Year
2008
- Abstract
The BIOPAN-6 loaded with exo-biological experiments was constructed as a pan-shaped multi-purpose facility and mounted on the outer surface of an un-manned Foton spacecraft launched from Baikonur in September 2007. This platform was opened to expose its contents directly to the space environment in low-earth orbit (LEO) for ten days. As part of the European Space Agency (ESA) BIOPAN-6 mission we participated with the RADO (radiation dosimetry) experiments: three solid state nuclear track detector (SSNTD) stacks with different charged particle converters were applied to investigate the cosmic radiation. One of the RADO experiments was dedicated to the detection of primary galactic cosmic rays (GCR) and secondary particles as target fragments and neutrons. Two other assemblies were placed on active electronic appliances to map the trespassing charged particles. For evaluation, the system was calibrated at high energy particle accelerators, at neutron generators, with 1 MeV proton (Van de Graaf) and with collimated 210Po alpha source (4,65 MeV). After etching the detectors were investigated by an image analyser. From the track parameters the linear energy transfer (LET) spectra were determined. Based on the LET spectra (LET > 12 keV µm −1) the absorbed dose (D) and dose equivalent (H) have been deduced. The evaluation of the large amount of data is still in progress. The detector assemblies, the evaluation methods and the results will be presented together with a comparison to the previous BIOPAN-5 measurements.
- Abstract document
- Manuscript document
IAC-08.A1.7.-A2.7.8.pdf (🔒 authorized access only).
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