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VOLUME 55 (1992) | ISSUE 2 | PAGE 95
Observation of anomalously high flux densities of low-energy heavy nuclei on the Salyut-6, Salyut-7, and Mir orbital stations
Significant flux densities of Ca-Fe nuclei with energies below 50-100 MeV/ nucleon have been detected by a track detector at an altitude ~ 300-350 km. The flux densities increase with decreasing energy. The uniquely high flux densities of nuclei in the energy range 140-5 MeV/nucleon in 1988-1990—greater than those in previous exposures by one to four orders of magnitude—are correlated with intense solar proton flares in August-October 1989.