MODELLING GAIA CCD PIXELS WITH SILVACO 3D ENGINEERING SOFTWARE

/ Authors

G. Seabroke, T. Prod’homme, G. Hopkinson, D. Burt, M. Robbins, A. R. Institute, T. O. University, M. Keynes, UK., Mullard Space Science Laboratory

and 8 more authors

U. London, L. Observatory, Leiden University, The Netherlands., Surrey Satellite Technology Ltd., Sevenoaks, E. Technologies, Chelmsford

/ Abstract

Gaia will only achieve its unprecedented measurement accuracy requirements with detailed calibration and correction for radiation damage. We present our Silvaco 3D engineering software model of the Gaia CCD pixel and two of its applications for Gaia: (1) physically interpreting supplementary buried channel (SBC) capacity measurements (pocket-pumping and first pixel response) in terms of e2v manufacturing doping alignment tolerances; and (2) deriving electron densities within a charge packet as a function of the number of constituent electrons and 3D position within the charge packet as input to microscopic models being developed to simulate radiation damage.

Journal: Eas Publications Series

DOI: 10.1051/eas/1045077