RPC2012 - XI Workshop on Resistive Plate Chambers and Related Detectors

Simulation studies on the Effect of SF6 in the RPC gas mixture

7 Feb 2012, 16:10

20m

<B>Aula B. Touschek, Bldg 36</B> (INFN-LNF <!-- ID_UTENTE=503 -->)

oral presentation Simulations and modeling Simulations and modeling

Speaker

Dr Bheesette Satyanarayana (Department of High Energy Physics, Tata Institute of Fundamental Research, Mumbai 400005, INDIA)

Description

The India based Neutrino Observatory (INO) collaboration is planning to build a 50 kton magnetized iron calorimeter (ICAL) detector to study neutrino oscillations and measure their associated parameters[1]. ICAL will use 28,800 glass Resistive Plate Chambers (RPCs) of 2m X 2m in size and operated in the avalanche mode, as its active detector elements. As a part of the detector R&D to develop the RPCs required for this detector, we studied the effect of Sulfur hexaflouride (SF6) in the gas mixture on various RPC parameters. In this paper, we present a comparative study of signal development on the RPC pick-up electrodes using simulation and experimental data. In this study, the primary interactions of the incident particle in RPC gas volume is calculated using HEED[2], while the electron transport parameters are computed using MAGBOLTZ[3]. We used nearly exact Boundary Element Method (neBEM)[4] solver to calculate the weighting field and the electric fields accurately. And finally, the induced signal is obtained following the Ramo’s theorem[5]. Rererences: [1] INO Project Report, INO/2006/01, May 2006 [2] Igor Smirnov, HEED, program to compute energy loss of fast particles in gases, Version 2.10, CERN. [3] S. Biagi, MAGBOLTZ, program to compute gas transport parameters, Version 8.9.6, CERN. [4] N.Majumdar, S. Mukhopadhyay, Nucl. Instr. Meth. Phys. Research, A 566, p.489 (2006) [5] S. Ramo, Proc. IRE 27, p.584 (1939)

Presentation materials

Slides

salim-oral-id8.pptx