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Article Dans Une Revue Astronomy and Astrophysics - A&A Année : 2009

Iqueye, a single photon-counting photometer applied to the ESO new technology telescope

Vania da Deppo
  • Fonction : Auteur

Résumé

Context: A new extremely high speed photon-counting photometer, Iqueye, has been installed and tested at the New Technology Telescope, in La Silla.
Aims: This instrument is the second prototype of a ``quantum'' photometer being developed for future Extremely Large Telescopes of 30-50 m aperture.
Methods: Iqueye divides the telescope aperture into four portions, each feeding a single photon avalanche diode. The counts from the four channels are collected by a time-to-digital converter board, where each photon is appropriately time-tagged. Owing to a rubidium oscillator and a GPS receiver, an absolute rms timing accuracy better than 0.5 ns during one-hour observations is achieved. The system can sustain a count rate of up to 8 MHz uninterruptedly for an entire night of observation.
Results: During five nights of observations, the system performed smoothly, and the observations of optical pulsar calibration targets provided excellent results.

Dates et versions

hal-03742913 , version 1 (02-08-2022)

Identifiants

Citer

Giampiero Naletto, Cesare Barbieri, T. Occhipinti, I. Capraro, Andrea Di Paola, et al.. Iqueye, a single photon-counting photometer applied to the ESO new technology telescope. Astronomy and Astrophysics - A&A, 2009, 508, pp.531-539. ⟨10.1051/0004-6361/200912862⟩. ⟨hal-03742913⟩
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