  We present an accurate characterization of the particle background behaviour
on XMM-Newton based on the entire EPIC archive. This corresponds to the largest
EPIC data set ever examined. Our results have been obtained thanks to the
collaboration between the FP7 European program EXTraS and the ESA R&D ATHENA
activity AREMBES. We used as a diagnostic an improved version of the diagnostic
which compares the data collected in unexposed region of the detector with the
region of the field of view in the EPIC-MOS. We will show that the in
Field-of-View excess background is made up of two different components, one
associated to flares produced by soft protons and the other one to a
low-intensity background. Its origin needs to be further investigated.
