SEMINAR      Friday, 22th October 2004 - h. 15:00  Aula Seminari (B34)     M. Ronan (Berkeley) ILC Large Detector Study       Abstract The International Linear Collider (ILC) Physics and Detector Study is launching gaseous and silicon detector design studies. The large gaseous detector models being considered use a high precision vertex detector and large volume Time Projection Chamber (TPC) for charged particle tracking. New approaches to large volume calorimetry with good particle flow performance are being considered. In this talk, the conceptual designs, expected performance and preparations for detailed simulation and physics bench marking will be outlined. Some new Berkeley-Orsay-Saclay results on Micromegas TPC R&D studies will also be presented.