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pacome delva

Radiation fears stalk stellar mission - 0 views

physicsworld.com/...43063

space_mission GAIA solar_radiation

shared by pacome delva on 05 Jul 10 - Cached
  • Concern over ESA's handling of the radiation issue caused Michael Perryman, former GAIA project scientist, to resign from the agency in 2008. But GAIA science-team member Lennart Lindegren, an astronomer at Lund Observatory in Sweden, is confident that GAIA's unprecedented accuracy will be feasible. GAIA researchers will continue to perform tests and calibrations until at least 2011, which will include irradiating the CCDs at space-like temperatures. Lindegren admits, however, that they can never be certain of success until the spacecraft is in orbit and starts sending back data.
  • pacome delva on 05 Jul 10
     
    metamaterials to stop radiations?
  • LeopoldS on 05 Jul 10
     
    hmm ... in the optical range it is already a bit tricky .... lets brainstorm a bit about it ... anything in the literature? Luzi?
  • pacome delva on 06 Jul 10
     
    the components of the metamaterial need to have a size inversely proportional to the wavelenght, but here we are talking about high energy protons. So the idea was: is there metamaterials that change the electrical properties to solve this problem of holes in the material... but i dont have a clue !
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