Since its introduction in 1996 GEM (Gas Electron Multiplier) has attracted a lot of interest due to many promising features: good position accuracy and two track resolution, high rate capability, high radiation tolerance and time stability, large flexibility of the geometrical shapes and readout schemes. This has led to a wide range of applications from simple tracking and triggering through photon detection for fast RICH to GEM based TPC. CERN was one of the main drivers behind these developments. In parallel to the success of GEM in physics experiments industrial partners became aware of their potential for applications in medicine, biology and safety technology.
In this seminar we show latest CERN developments of the new GEM detector configurations and readout structures.
Next generation accelerators (SLHC, ILC and CLIC) experiments will push detector requirements further, in particular long-term survival at very high radiation fluxes, susceptibility to heavily ionizing background and to neutrons, geometrical dimensions and material budget. Perspectives for the R&D projects to meet these challenges will be presented as well.