  We present an analysis of 7 clusters observed by XMM as part of our survey of
17 most X-ray luminous clusters of galaxies at z=0.2 selected for a
comprehensive and unbiased study of the mass distribution in massive clusters.
Using public software, we have set up an automated pipeline to reduce the EPIC
MOS & pn spectro-imaging data, optimized for extended sources analysis. We also
developped a code to perform intensive spectral and imaging analysis
particularly focussing on proper background estimate and removal. XMM deep
spectro-imaging of these clusters allowed us to fit a standard beta-model to
their gas emission profiles as well as a standard MEKAL emission model to their
extracted spectra, and test their inferred characteristics against already
calibrated relations.
