High counting rate, differential, strip read-out, multi gap timing RPC

Based on single ended strip structure, symmetric, multi gap RPC, developed by us more than a decade ago, the time-of-flight barrel of FOPI experiment at G SI-Darmstadt was designed, constructed and is currently in operation. Motivated by the requirements of the next generation experiments in terms of very good time resolution in high counting rate and multiplicity environment, a new architecture of differential, strip structure, symmet ric, multi gap timing RPC was developed. The results on efficiency, two dimensions position resoluti on, time resolution and performance in high counting rate environment using low resistivity glass electrodes are reported.