Recent developments in gas tracking detectors for high luminosities

With the high luminosities of upcoming colliders, the frontiers of present generation gas tracking detectors have been pushed, resulting in a large number of innovations in their design, technology and readout systems of which I will discuss some examples. The ATLAS muon spectrometer despite comprising 'simple' proportional tubes, has been extensively studied to better understand and optimize its performance inclusive of the front-end electronics. The MicroStrip Gas Chambers have come long way since their introduction, their spin-offs being Micro-Gap Chambers and the MICRODOT chambers which are described. The introduction of a novel device called the Gas Electron Multiplier GEM, seems promising, and is being considered by HERA-B for improved reliability.