Mathematics – Logic
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.471..453v&link_type=abstract
In: 15th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 28 - 31 May 2001, Biarritz, France. Ed.:
Mathematics
Logic
Gamma-Ray Lens, Balloons
Scientific paper
On June 15, 2000, the first gamma-ray lens for astrophysics, CLAIRE, flew on a stratospheric balloon. The instrument features a Laue diffraction lens, a 3×3 array of cryogenic germanium detectors, and a balloon gondola stabilizing the lens to a few arcseconds. The lens consists of Ge/Si mosaic crystals, focusing gamma-ray photons from its 366 cm2 area onto a small solid state detector, with only 18 cm3 equivalent volume for background noise. The diffracted energy of 170 keV results in a focal length of 279 cm, yet the entire payload weighed under 500 kg. CLAIRE was launched by the French Space Agency CNES from its base at Gap-Tallard in the French Alps, and was recovered intact, after more than 6 hours at float altitude (3 mbar), in the department of the Landes in the Southwest of France. All of the systems appear to have behaved nominally during the flight. The primary objective of this technological balloon flight was to test a gamma-ray lens under space conditions. Detailed analysis of the data will involve identifying which data were obtained when CLAIRE was pointing at our main target, the Crab nebula and how many photons focused by the lens were received.
Abrosimov Nicolai
Bastie Pierre
Di Cocco Guido
Evrard Jean
George Machabeli
No associations
LandOfFree
The first flight of a gamma-ray lens does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The first flight of a gamma-ray lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The first flight of a gamma-ray lens will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-953610