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Proceedings Article

The radiation environment at L2 as seen by Gaia

[+] Author Affiliations
Ralf Kohley, Cian M. Crowley, Juan M. Martin-Fleitas, Alcione Mora, Asier Abreu-Aramburu

European Space Astronomy Ctr. (Spain)

Philippe Garé, Alexander D. Short, Thibaut Prod'homme

European Space Research and Technology Ctr. (Netherlands)

François Chassat

Airbus Defence and Space Satellites (France)

Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 915406 (July 23, 2014); doi:10.1117/12.2056420
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From Conference Volume 9154

  • High Energy, Optical, and Infrared Detectors for Astronomy VI
  • Andrew D. Holland; James Beletic
  • Montréal, Quebec, Canada | June 22, 2014

abstract

The radiation environment at L2 is of great importance to the science instruments of Gaia. Especially the non-ionising damage to the CCDs and the resulting increase in charge transfer inefficiency will ultimately limit the achievable science performance. With its launch in December 2013 for a nominal mission of 5 years Gaia is continuously collecting invaluable information of radiation effects on the 106 CCDs in the FPA from the analysis of the science data and dedicated calibration procedures. The paper shows first results and discusses the detected irradiation background with respect to predictions and reviews operational implications for the mission. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Ralf Kohley ; Cian M. Crowley ; Philippe Garé ; François Chassat ; Alexander D. Short, et al.
" The radiation environment at L2 as seen by Gaia ", Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 915406 (July 23, 2014); doi:10.1117/12.2056420; http://dx.doi.org/10.1117/12.2056420


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