A model for RPC detectors operating at high rate

We present a simple model to describe the behavior of Resistive Plate Chamber (RPC) exposed to a high particle flux. We show that the RPC current, I, saturates at large flux values and we explain why the dependence of I on the applied voltage Vo is essentially linear. We show that in the saturated r...

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Detalles Bibliográficos
Autores principales: Carboni, G, Collazuol, G, De Capua, S, Domenici, Daniele, Ganis, G, Messi, R, Passaleva, G, Santovetti, E, Veltri, M
Lenguaje:eng
Publicado: 2002
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/691682
Descripción
Sumario:We present a simple model to describe the behavior of Resistive Plate Chamber (RPC) exposed to a high particle flux. We show that the RPC current, I, saturates at large flux values and we explain why the dependence of I on the applied voltage Vo is essentially linear. We show that in the saturated regime the current is controlled by the value of the bulk electrode resitivity, rho, which is directly related to the perfomance of the detector at high particle rates. Measuring the I-Vo curve under these conditions offers a simple and direct method to obtain rho and to monitor its possible variations.

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