Study of the cosmic data taken with the ALICE TOF detector at the LHC

The commissioning of the Time-of-Flight (TOF) detector of ALICE has been carried out and the apparatus is currently fully operational. The TOF consists of 152 928 readout pads, each of dimension 2.5×3.5 cm2. A study on the pad clusters has been performed: when an ionizing particle crosses the sensitive volume of the chambers, a set of neighbouring pads can collect a fraction of the avalanche charge. The possibility to enhance the spatial resolution of the detector, will be reported. A study on the cosmic muons selection and their angular distribution in the ALICE pit are also shown.