A Co-ordinated X-ray/Optical Medium Deep Survey

GTWe propose to perform a medium deep survey with EPIC of a single contiguous area coordinated with approved deep photometric (MEGACAM) and spectroscopic (VIRMOS) surveys. Guaranteed time observations (400 ksec) will cover an area of 2 sq. deg. (16x20 + 2x40 ksec pointings). This will allow to identify galaxy clusters/groups up to zvirgul12 and AGNs much farther away. GT observations will be focused on AGN evolution and search for distant clusters; they will be completed by an Open Time proposal to cover a surrounding area of 8x8 sq. deg.(10 ksec pointings),dedicated to Large Scale Structure investigations.This GT survey is acollaboration between members of the EPIC, OM and SSC consortia. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]