Large bulk-micromegas detectors for TPC applications in HEP

Bulk-MicroMegas detectors are based on a novel technology which is of particular interest for large area Micro Pattern Gas Detectors (MPGD). Their manufacturing process combines detector construction simplicity and robustness, allowing large sensitive areas to be produced at low cost. Such devices provide very good gas gain uniformity and detection coverage with small dead spaces. They are ideally suited in HEP applications where large volume tracking detectors with low material budget are required. This is the case, for instance, of the T2K neutrino experiment in Japan, in which large Time Proportional Chamber (TPC) devices will be used. Bulk- MicroMegas detectors are also being considered for the future Linear Collider Detector. We present in this paper the recent developments and performance of bulk-MicroMegas detectors for the T2K TPC.