Author/Authors :
Aielli، نويسنده , , G. and Camarri، نويسنده , , P. and Cardarelli، نويسنده , , R. and Di Ciaccio، نويسنده , , A. and Di Stante، نويسنده , , L. and Liberti، نويسنده , , B. and Paoloni، نويسنده , , A. and Pastori، نويسنده , , E. and Santonico، نويسنده , , R.، نويسنده ,
Abstract :
The resistive electrodes of RPCs utilised in several current experiments (ATLAS, CMS, ALICE, BABAR and ARGO) are made of phenolic/melaminic polymers, with room temperature resistivities ranging from 1010 Ω cm, for high rate operation in avalanche mode, to 5×1011 Ω cm, for streamer mode operation at low rate.
sistivity has however a strong temperature dependence, decreasing exponentially with increasing temperature. We have tested several RPCs with different electrode resistivities in avalanche as well as in streamer mode operation.
haviours of the operating current and of the counting rate have been studied at different temperatures. Long-term operation has also been studied at T=45°C and 35°C, respectively, for high and low resistivity electrodes RPCs.
