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- Volume 74 - Année 2005
- Numéro 5 - 6
- CPNG-Algol: photon-counting cameras for visible interferometry
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CPNG-Algol: photon-counting cameras for visible interferometry
Proceedings of the European Interferometry Initiative Workshop organized in the context of the 20005 Joint European and National Astronomy Meeting "Distant Worlds"?
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Abstract
We have developed a new generation of photon counting cameras for interferometric observations in visible wavelengths. Using image intensifiers with very high quantum efficiency, they are more efficient than previous generations and open new classes of objects to observation. Their modular design, with standard components, allows customization and easy maintenance and evolution. Photon localization, data acquisition and storage are achieved on a PC. Five cameras were built, with various specifications allowed by the modular design. Tests showed a good quantum efficiency in photon counting mode, reaching 36 % in blue to green wavelengths, and 28 % in red ones (with two different photocathodes).
Pour citer cet article
A propos de : A. Blazit
Observatoire de la Côte d’Azur, Nice, France
A propos de : E. Thiébaut
Observatoire de Lyon, Lyon, France
A propos de : F. Vakili
Laboratoire Universitaire d’Astrophysique de Nice, Nice, France
A propos de : L. Abe
Laboratoire Universitaire d’Astrophysique de Nice, Nice, France
A propos de : A. Spang
Observatoire de la Côte d’Azur, Nice, France
A propos de : J.-M. Clausse
Observatoire de la Côte d’Azur, Nice, France
A propos de : D. Mourard
Observatoire de la Côte d’Azur, Nice, France
A propos de : X. Rondeau
Observatoire de Lyon, Lyon, France