Final objective : To have a fast simulation of the triple-GEM detector fully parameterized using the input of GARFIELD but running without it or in an hybrid simulation.
The goal is to be able to produce, as fast as possible, signals for different parameters, like the gap geometry, the strip pitch, the gain, etc.

So far :

• Creation of a muon track (ionisation, cluster size distribution)
• Diffusion (longit. and transv. for Ar:CO2 or Ar:CO2:CF4 mixture E = 3 kV/cm)
• Gain for the GEM foil (and fluctuation with an exponential)
• Transparency
• Induction of the signal on several strips
• Convolution with the VFAT3 transfer function