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The performance of a wide-field adaptive optics system depends on inputdesign parameters. Here we investigate the performance of a multi-conjugateadaptive optics system design for the European Extremely Large Telescope, usingan end-to-end Monte-Carlo adaptive optics simulation tool, DASP. We considerparameters such as the number of laser guide stars, sodium layer depth,wavefront sensor pixel scale, number of deformable mirrors, mirror conjugationand actuator pitch. We provide potential areas where costs savings can be made,and investigate trade-offs between performance and cost. We conclude that a 6laser guide star system using 3 DMs seems to be a sweet spot for performanceand cost compromise.

Monte-Carlo modelling of multi-conjugate adaptive optics performance on the European Extremely Large Telescope