A shower array exploiting the full coverage approach with a high segmentation
of the readout allow to image the front of atmospheric showers with
unprecedented resolution and detail. The grid distance determines the energy
threshold (small energy showers are lost in the gap between detectors) and the
quality of the shower sampling. Therefore, this experimental solution is needed
to detect showers with a threshold in the 100 GeV range. The full coverage
approach has been exploited in the ARGO-YBJ experiment. In this contribution we
will summarise the advantages of this technique and discuss possible
applications in new wide field of view detectors.Comment: Invited Talk to 21st International Symposium on Very High Energy
Cosmic Ray Interactions (ISVHECRI 202