Author/Authors :
Alviggi، نويسنده , , M. and Carlino، نويسنده , , G. and Conventi، نويسنده , , F. and de Asmundis، نويسنده , , R. and Della Pietra، نويسنده , , M. and Della Volpe، نويسنده , , D. and Patricelli، نويسنده , , S. and Paolucci، نويسنده , , P. and Piccolo، نويسنده , , D. and Sciacca، نويسنده , , C. and Sekhniaidze، نويسنده , , G.، نويسنده ,
Abstract :
The RPC detectors in the L3 experiment at LEP work as a trigger system for the Forward–Backward Muon Spectrometer. It consists of 192 bi-gap RPCs working in streamer mode. We monitored the behaviour of the system over seven years of data taking at LEP. To investigate the ageing of the RPCs after this long-term operation, we report the main results obtained from 1994 to 2000, together with the results of tests performed on some RPC chambers in our test site in Napoli with cosmic rays after the dismantling of L3.
Keywords :
LEP , RPCs , Lineseed oil , L3 , ATR , FTIR
