Mechanical prototype of tracking chamber in station 2 in dimuon spectrometer of ALICE

To explore the physics of ultra-relativistic heavy-ion collision, a large ion collider experiment (ALICE) is proposed to carry out at large hadron collider (LHC). Forward muon spectrometer (FMS) is included in ALICE to look for the signals of quark gluon plasma (QGP) using dileptonic decay of heavy quarkonia produced in the collision as a probe. The mechanical prototype for this experiment has been tested for its mechanical characteristics. The measured values of the prototype deformation with and without the CPF are illustrated by open symbols as a function of the overpressure of the filling gas. (Edited abstract) 4 Refs.