I. Crotty et al., FURTHER-STUDIES OF AVALANCHE MODE-OPERATION OF RESISTIVE PARALLEL-PLATE CHAMBERS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 346(1-2), 1994, pp. 107-113
We have investigated the high rate operation of the resistive plate ch
amber and have discovered that melamine-phenolic laminates are good ca
ndidates for a plate material. We have previously shown that avalanche
mode (rather than spark mode) gives a substantial improvement in the
rate capability. There are two new encouraging results; the timing spe
ctra are not affected by the rate; and particles at non normal inciden
ce have a higher detection efficiency; these substantially increase th
e rate capability of this device. However there are two results that s
how that further R & D is needed. These are: the change in resistivity
of the plate material with time; and the fall off of the efficiency w
ith increasing high voltage. Our goal is to produce a cheap large area
detector that has good spatial and time resolution and has a raft cap
ability suitable for the muon system at a future collider. We believe
that these results show that this detector is already promising and sh
ould satisfy these requirements with further R & D.