REAL-TIME DOSE-RATE AND LET SPECTRUM ABOARD MIR STATION DURING 1992

Since the end of July 1992, the NAUSICAA system, a low gas pressured t issue equivalent proportionnal counter, recorded in real time the dose equivalent rate, the absorbed dose rate, the quality factor and the L inear Energy Transfer spectra, aboard the Russian orbital station MIR. The results since the ANTARES mission are presented.Some paramaters l ike the proton flux, the previous solar cycles, the location of the NA USICAA system inside the station and the South Atlantic Anomaly crossi ng seem to have an influence on these results. The total dose equivale nt (H) during the ANTARES mission (between 1992 July the 30th and Augu st the 10th) was 12 mSv and the total absorbed dose (D) 6.4 mGy with a quality factor (Q) equal to 1.9. The NAUSICAA system gives a good kno wledge of LET spectra for the first time in space dosimetry.