1. ALICE setup: update on the installation 18/10/2010 Angela Intermite

2. Optical fibre beam loss monitor Cerenkov cone α θ C electron Cerenkov photon Fiber core photons/cm for 350<λ<550 nm Parameters: incident angle geometry of the fibre kind of particles threshold energy

3. ALICE experiment : goals Observation of the Cerenkov signal created inside the fibre. Optimization of the signal by:  Changing the angular position of the fibre  Changing the fibre and testing different fibre with different properties for choosing the suitable candidate  Changing the properties of the beam i.e. energy between 10 and 20 MeV and number of bunches. Comparison between a signal of the fibre in standard condition and a signal coming from different loop off the same fibre with different bending radius. Radiation hardness of fibres and detectors.

4. ALICE experiment: location

5. ALICE experiment: setup

6. Motorized YAG screen support

7. Motorized optical fiber support

8. Faraday cup support

9. Remote control card

10. Installation in ALICE Done: mechanical part detector tested remote control cage for Faraday cup studdings for motors Faraday cup connection

11. Questions? Thanks for your attention