New trends in drift chamber development

New trends in drift chamber (DC) development are considered. Basic processes in drift chambers are reviewed. New methods for obtaining high spatial resolution in DC are analysed. The characteristics of large time-projection chambers working on colliders and in fixed-target experiments are described. Factors influencing counting rate characteristics, work of these chambers in magnetic field and their calibration are discussed. Wide-gap and electrodless drift chambers are described as well. Their characteristics and possibilities of using them in high-energy physics experiments are discussed