Author/Authors :
Siddi، نويسنده , , E. and Arnaldi، نويسنده , , R. and Chiavassa، نويسنده , , E. and Cicalَ، نويسنده , , C. and Cortese، نويسنده , , P. and De Falco، نويسنده , , A. and Dellacasa، نويسنده , , G. and De Marco، نويسنده , , Nora N. and Ferretti، نويسنده , , A. and Gallio، نويسنده , , M. and Masoni، نويسنده , , A. and Mereu، نويسنده , , P. and Musso، نويسنده , , A. and Oppedisano، نويسنده , , C. and Piccotti، نويسنده , , A. and Puddu، نويسنده , , G. and، نويسنده ,
Abstract :
The details of the construction of the neutron Zero Degree Calorimeters (ZN) of the ALICE Experiment, as well as their performances, will be presented. These spaghetti calorimeters will measure the energy lost by spectator nucleons in heavy-ion collisions. They are made of an absorber (tungsten alloy) filled with silica fibers, in which the charged particles of the shower produce Cherenkov light. The final neutron calorimeters have been built and their performances studied at the CERN SPS using pion and positron beams with momentum ranging from 50 to 150 GeV/ c . The main features like linearity of the response and resolution as a function of energy will be presented.
