...
The new CXC Calibration has many good references and links to presentations at Calibration Workshops.
http://cxc.harvard.edu/cal/Acis/detailed_info.html
ACIS CTI, initial discovery:
Prigozhin, et al. 2000, Proc SPIE, 4012, 720
Radiation damage in the Chandra x-ray CCDs
http://adsabs.harvard.edu/abs/2000SPIE.4012..720P
Prigozhin, et al. 2000, Proc SPIE, 4140, 123
Characterization of the radiation damage in the Chandra x-ray CCDs
http://adsabs.harvard.edu/abs/2000SPIE.4140..123P
ACIS CTI monitoring:
(CTI, trailing charge, correcting CTI for bkg and temperature, etc.)
...
(and others, but these are the main ones)
Prigozhin, et al. 2000, Proc SPIE, 4012, 720
Radiation damage in the Chandra x-ray CCDs
http://adsabs.harvard.edu/abs/2000SPIE.4012..720P
Prigozhin, et al. 2000, Proc SPIE, 4140, 123
Characterization of the radiation damage in the Chandra x-ray CCDs
http://adsabs.harvard.edu/abs/2000SPIE.4140..123P