Study of Streamer Development in Resistive Plate Chamber

Abstract

This work has been carried out to simulate the working mode of a Resistive Plate Chamber and corroborate it with experimental measurements in order to develop a numerical tool for studying the performance of the device for any gas mixture. This will allow us to explore the feasibility of operating these chambers in the Iron Calorimeter setup at India-based Neutrino Observatory with any eco-friendly substitute. The simulation has considered a hydrodynamic model of charge transport to emulate the electronic and ionic growths in the device as a function of the applied voltage which determines its working mode as either of the avalanche or streamer. In order to validate, the simulation result has been compared with compatible experimental data available in the literature.

Qualification of Eco-Friendly Gas Mixture for Avalanche Mode Operation of RPC

“…So at Z = 0 mm we have the anode and at Z = 2 mm we have the cathode. In order to limit the computation, the length along the X-direction has been kept 1 mm which is sufficient to contain the spread of the avalanche [17]. It is conceivable that the 2D geometry has its own limitations and 3D simulation should give us a more realistic situation.…”

“…The ratio of those with respect to the total events has been regarded as the efficiency. The detailed discussion on the method of calculation of efficiency and streamer fraction may be found in our previous work [17].…”

“…A few other packages, namely, HEED [14] and MAGBOLTZ [15], have been utilized to obtain the supplementary information on primary ionization and electron transport parameters for the gas mixture under study, respectively. The model has been developed and validated by comparing its results for a gas mixture of R134a and n-C 4 H 10 with reported experimental data of the detector efficiency and streamer fraction at different applied voltages [16] which has been reported by us in [17].…”