Micromesh for Micromegas chamber
Micromesh kapton pillars (height=50 micron and pitch= 2mm).
These pillars support the micromesh's weight and keeps it from
touching the anode plane.
The micromegas detector is a different micro-patterned device in that
it creats a parallel electric field in a tiny gas volume where
avalanche multiplication takes place. Placing the thin mesh
this close was not possible until the lithography technique
advanced but now it is possible to build a very robust detector
Poster
for the DOE visit in August, 2001 describing Micromegas and GEM
Micromegas poster(in French)