Radiation dosimetry
ALTCRISS
ALTCRISS, which stands for Alteino Long Term monitoring of Cosmic Rays on the International Space Station, is an ESA experiment to study the effect of shielding on cosmic rays in two different and complementary ways. The detector of the Alteino device will monitor differences in the flow of cosmic rays with regard to the position and orientation of the Alteino device and also with regard to different shielding materials placed over the particle acceptance windows of the Alteino instrument.
The Alteino detector was operational during the European Marco Polo and Eneide missions with ESA astronaut Roberto Vittori. It consists of a cosmic ray detector (AST/Sileye-3) and an Electroencephalograph (EEG), although the Electroencephalograph will not be used in the Altcriss project. The obtained data will be used to better understand the radiation environment in spacecraft and how to provide efficient shielding against it.
Matroshka 2
The ESA Matroshka facility was installed on the external surface of the ISS on 27 February 2004 with the aim of studying radiation levels experienced by astronauts during spacewalk activities. It consists of a human shape (head and torso) called the Phantom, which is equipped with several active and passive radiation dosimeters.
Phantom is mounted inside a carbon fibre and reinforced plastic container which simulates a spacesuit. The facility was brought back inside the ISS on 18 August 2005 as part of Expedition 11 EVA activities. Passive radiation sensors were removed and returned to Earth with the Expedition 11 crew. The Matroshka facility is currently taking readings inside the ISS. In September 2006, Matroshka will once again be moved outside.
Last update: 20 June 2006
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