The detection of single electrons by means of a Micromegas-covered MediPix2 pixel CMOS readout circuit

M. Campbell, M. Chefdeville, P. Colas +10

A small drift chamber was read out by means of a MediPix2 readout chip as direct anode. A Micromegas foil was placed 50 $\mu$m above the chip, and electron multiplication occurred in…