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Anomalous Long Term Effects in Astronauts' Central Nervous System - Shield (ALTEA_Shield)
Principal Investigator
Research Area:
Radiation biology
Species Studied
Scientific Name: Homo sapiens Species: Human

Astronauts in orbit are exposed to cosmic radiation that is of sufficient frequency and intensity to cause effects on the central nervous system. Radiation exposure represents one of the greatest risks to humans traveling on exploration missions beyond low Earth orbit (LEO).

ALTEA-Shield is part of the ALTEA program, a multidisciplinary research project which aims at obtaining a better understanding of the light flash phenomenon, and more generally the interaction between cosmic rays and brain functions. Interactions between ionizing radiation in space and brain functions, and the related risk assessments, are among the major concerns when programming long permanence in space.

The Anomalous Long Term Effects in Astronauts' Central Nervous System - Shield (ALTEA-Shield) experiment, developed by the Italian Space Agency (ASI), will measure the particle flux in the U.S. Laboratory on the International Space Station (ISS), being able to discriminate the type of particles, to measure their trajectories and the delivered energies.

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Radiation monitoring

Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Radiation exposure
Radiation measurement

Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Expedition 23 03/18/2010 06/01/2010 75 days
Expedition 24 06/01/2010 09/25/2010 117 days
Expedition 25 09/24/2010 11/25/2010 31 days
Expedition 26 11/26/2010 03/16/2011 111 days
Expedition 27 03/14/2011 05/23/2011 70 days
Expedition 28 05/23/2011 09/15/2011 115 days
Expedition 29 09/16/2011 11/21/2011 40 days
Expedition 30 11/14/2011 04/27/2012 166 days
Expedition 31 04/27/2012 07/01/2012 65 days
Expedition 32 07/01/2012 09/16/2012 78 days

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Jessica Keune
Institutional Support
European Space Agency (ESA)
Italian Space Agency (ASI)