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Proceedings Paper

The radiation environment at L2 as seen by Gaia
Author(s): Ralf Kohley; Cian M. Crowley; Philippe Garé; François Chassat; Alexander D. Short; Juan M. Martin-Fleitas; Alcione Mora; Asier Abreu-Aramburu; Thibaut Prod'homme
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Paper 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.

Paper Details

Date Published: 23 July 2014
PDF: 12 pages
Proc. SPIE 9154, High Energy, Optical, and Infrared Detectors for Astronomy VI, 915406 (23 July 2014); doi: 10.1117/12.2056420
Show Author Affiliations
Ralf Kohley, European Space Astronomy Ctr. (Spain)
Cian M. Crowley, European Space Astronomy Ctr. (Spain)
HE Space Operations BV (Netherlands)
Philippe Garé, European Space Research and Technology Ctr. (Netherlands)
François Chassat, Airbus Defence and Space Satellites (France)
Alexander D. Short, European Space Research and Technology Ctr. (Netherlands)
Juan M. Martin-Fleitas, European Space Astronomy Ctr. (Spain)
Aurora Technology (Netherlands)
Alcione Mora, European Space Astronomy Ctr. (Spain)
Aurora Technology (Netherlands)
Asier Abreu-Aramburu, European Space Astronomy Ctr. (Spain)
Elecnor Deimos Space (Spain)
Thibaut Prod'homme, European Space Research and Technology Ctr. (Netherlands)


Published in SPIE Proceedings Vol. 9154:
High Energy, Optical, and Infrared Detectors for Astronomy VI
Andrew D. Holland; James Beletic, Editor(s)

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