...
Grant, et al. 2005, Proc. SPIE, 5898
Long-term trends in radiation damage of Chandra X-ray CCDs
http://adsabs.harvard.edu/abs/2005SPIE.5898..201G
LaMarr, et al. 2008, Proc SPIE, 7011, 66
Front- and back-illuminated x-ray CCD performance in low- and high-Earth orbit: performance trends of Suzaku XIS and Chandra ACIS detectors
http://adsabs.harvard.edu/abs/2008SPIE.7011E..66L
...
Swift-XRT instrument reference paper, Burrows et al 2005 SSR 120 165
http://adsabs.harvard.edu/abs/2005SSRv..120..165B
2009 XRT CCD calibration paper, Godet et al. 2009 AA 494 775
http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2009A%2526A...494..775GFUL
2013 XRT CCD trap mapping paper, Pagani et al. 2011 AA 534 20
http://adsabs.harvard.edu/abs/2011A%26A...534A..20P
Gain and RMF/ARF Release Notes at UoL : Swift XRT Cal Release Notes