The forward inelastic telescope T2 for the TOTEM experiment at the LHC

The TOTEM Experiment will measure the total pp cross-section with the luminosity-independent method and study elastic and diffractive scattering at the LHC. To achieve optimum forward coverage for charged particles emitted by the pp collisions in the interaction point IP5, two tracking telescopes, T1 and T2, will be installed on each side in the pseudorapidity region $3.1 \leq |\eta| \leq 6.5$ and Roman Pot stations will be placed at distances of 147 m and 220 m from the Interaction Point 5 (IP5). The triple Gas Electron Multiplier (GEM) technology has been chosen by the collaboration for its T2 telescope which will provide charged track reconstruction in the rapidity range $5.3 < \eta < 6.5$ and a fully inclusive trigger for diffractive events. Results from the preliminary tests on the prototypes of the TOTEM Triple GEM detectors up to the data taking during the first pp collisions at the LHC will be described in this thesis.