Performances of linseed oil-free bakelite RPC prototypes with cosmic ray muons

Abstract

A comparative study has been performed on Resistive Plate Chambers (RPC) made of two different grades of bakelite paper laminates, produced and commercially available in India. The chambers, operated in the streamer mode using argon, tetrafluroethane and isobutane in 34:59:7 mixing ratio, are tested for the efficiency and the stability with cosmic rays. A particular grade of bakelite (P-120, NEMA LI-1989 Grade XXX), used for high voltage insulation in humid conditions, was found to give satisfactory performance with stable efficiency of > 96% continuously for more than 130 days. A thin coating of silicone fluid on the inner surfaces of the bakelite RPC is found to be necessary for operation of the detector.

arXiv comment6 figures, Presented in IX International Workshop on Resistive Plate Chamber and related Detectors-2007, TIFR, Mumbai, India, February 13-16, 2008

Cited by in corpus (10)

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• Fabrication and Characterisation of Oil-Free Large High Pressure Laminate Resistive Plate Chamber
• Measurement of electrical properties of electrode materials for the bakelite Resistive Plate Chambers
• Development of linseed oil-free bakelite resistive plate chambers
• Performances of silicone coated high resistive bakelite RPC
• A new technique of linseed oil coating in bakelite RPC and the first test results
• Characterisation of an RPC prototype with moderate resistivity plates using tetrafluoroethane ($C_2{H}_2{F}_4$)
• A new type of RPC with very low resistive material
• Development of Multi-gap Resistive Plate Chamber (MRPC) for medical imaging
• Effect of plate roughness on the field near RPC plates