First Light for a Gamma-Ray Lens

The CLAIRE collaboration has performed the first astronomical observation of a gamma-ray lens. On June 14 2001, CLAIRE has  flown on a stratospheric balloon of the French Space Agency CNES ...


 
why a balloon borne gamma-ray lens ? 
why focus gamma-rays ?
why the Crab ?
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how does it work ?
The principle of the gamma-ray lens
The instrument ... on paper
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who is involved ?
The collaboration
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when, where and how did CLAIRE observe ?
the technological CLAIRE flight of june 15 2000
CLAIRE first light - flight of june 14 2001
the CLAIRE TGD campaigne (Test à Grande Distance) of 2003
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what came out ?
CLAIRE debriefing of July 4, 2003
CLAIRE publications
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what now ?
MAX - a gamma-ray lens for nuclear astrophysics
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no comprendo ?
version française

 update : july 2003
 questions and comments :Peter von Ballmoos