Large surface micromegas with embedded front-end electronics for a digital hadronic calorimeter

International audienceIn order to study the advantages of a digital hadronic calorimeter for particle flow algorithms, we aim to build a detector prototype with MicroMegas chambers. The bulk technology was chosen for its robustness and the possibility of industrial manufacturing process for mass production. First tests of 1 cm2 granularity MicroMegas with analog readout are very promising. Larger chambers with embedded digital front-end electronics together with detector interface readout boards are being designed. The challenge also lies in the mechanical design of a 1 m2 chamber with a total thickness of 6 mm