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Understanding the evolution of radiation damage on the Gaia CCDs after 72 months at L2

Seabroke, George; Ahmed, Saad; Holland, Andrew +5 more

The European Space Agency's Gaia spacecraft has been operating in L2 ever since its launch in December 2013 with a payload that includes 106 scientific charge-coupled devices (CCDs). Due to the predicted radiation environment at the pre-flight testing stage in addition to the high level of accuracy demanded by the science objectives, the non-ioniz…