A TPC for a future linear collider

A large time projection chamber (TPC) has been proposed as main tracking device for a detector at a future linear collider (LC). The ambitious LC physics program poses unprecedented requirements on the precision of the TPC. A comprehensive R&D program is currently being accomplished to address this challenge. Emphasis is put on studying gas electron multipliers and micromegas as an alternative for conventional wire based gas amplification systems. An overview over recent results from the ongoing R&D efforts is presented.