Abstract
Resistive Plate Chamber (RPC) detectors are a very important part of present and future large-scale experiments. The present B-factory experiments, Belle and BaBar, operate at much larger luminosity (>3×10 33 cm −2 s −1) compared to their predecessors at LEP, where the RPC rates were not much higher than cosmic ray rates. Both Belle and BaBar RPC detectors operate in streamer mode. On the other hand, the LHC RPC detectors will operate in proportional mode, which is advantageous in terms of lower accumulated charge per track; however, it may be offset by considerably higher rates, assuming that the aging scales simply as total accumulated charge. The fear that the LHC RPC detectors may encounter similar difficulties as the B-factory RPCs prompted a very intensive R&D effort of rate-related deterioration.
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