The cosmic ray nuclei and eye light flashes in Sileye Ex-periment onboard the MIR space station

Details The cosmic ray nuclei and eye light flashes in Sileye Ex-periment onboard the MIR space station The cosmic ray nuclei and eye light flashes in Sileye Ex-periment onboard the MIR space station

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....5.1745a&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

The SilEye-2 particle telescope was placed on Mir in October 1997 and has been working since June 2000. It consists of 6 active silicon strip layers which allow charge and energy identification of cosmic ray particles in the energy range ~ 40 - 200 MeV/n. The detector is attached to a helmet with mask, which prevented light from reaching the cosmonaut's eyes. The phenomenon of Light Flashes (LF) in eyes for people in space has been investigated onboard Mir space station. Data on particles hitting the eye have been collected with the SilEye-2 detector, and correlated with human observations. In the period 98/99, we have 17 sessions with simultaneous SilEye-2 detector and LF observation data. 116 LFs were seen during about 800 minutes of observation. An additional 30 LFs were noted during three observation sessions amounting to 250 minutes without the silicon detector. In all 59414 protons and 479 nuclei passed through eyes were registered with SilEye-2 telescope. It is found, that a nucleus are the main reason caused a LF's in the radiation environment of Mir space station and in microgravitation conditions, the proton probability to cause LF is almost three orders of magnitude less.

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