Investigation of radiation environment and Light Flash phenomenon on board manned space stations with silicon detector telescopes

In this work we review measurements on cosmic-ray abundances and radiation environment on board Mir (1995-2000) and International (2002-2008) Space Stations with active silicon detector telescopes. Additional scientific topics goals involve the investigation of the Light Flash Phenomenon and its relation with nuclear fluence. Characteristics of the detectors employed (Sileye-1, Sileye-2, Sileye-3/Alteino, Altea) and some results are presented