Translator Disclaimer
Paper
11 March 2003 Design and flight performance of a crystal diffraction telescope
Author Affiliations +
Abstract
We present the design and performance of the gamma-ray lens telescope CLAIRE, which flew on a stratospheric balloon on June 14, 2001. The objective of this project is to validate the concept of a Laue diffraction lens for nuclear astrophysics. Instruments of this type, benefiting from the dramatic improvement of the signal/noise ratio brought about by focusing, will combine unprecedented sensitivities with high angular resolution. CLAIRE's lens consists of Ge-Si mosaic crystals, focusing gamma-ray photons from its 505 cm2 area onto a small solid state detector, with only 7.2 cm3 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 balloon base at Gap in the French Alps (Southeast of France) and was recovered near Bordeaux in the Southwest of France after roughly 5 hours at float altitude. After presenting the principle of a diffraction lens, the CLAIRE 2001 flight is analyzed in terms of pointing accuracy, background noise and diffraction efficiency of the lens.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hubert Halloin, Peter von Ballmoos, Jean Evrard, Gerald K. Skinner, Nikolai V. Abrosimov, Pierre Bastie, Guido Di Cocco, Michel George, Bernard Hamelin, Pierre Jean, Juergen Knoedlseder, Philippe Laporte, Carles Badenes, Phillipe Laurent, and Robert K. Smither "Design and flight performance of a crystal diffraction telescope", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); https://doi.org/10.1117/12.461506
PROCEEDINGS
10 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

The GLAST burst monitor
Proceedings of SPIE (October 11 2004)
MAX: a gamma-ray lens for nuclear astrophysics
Proceedings of SPIE (January 29 2004)
New design for a gamma-ray imaging telescope
Proceedings of SPIE (October 19 1993)
CLAIRE gamma ray lens flight and long distance test...
Proceedings of SPIE (January 29 2004)
A Laue lens for nuclear astrophysics
Proceedings of SPIE (June 28 2006)

Back to Top