CERN Accelerating science

Article
Report number arXiv:1605.02921
Title Performance Studies of Bulk Micromegas of Different Design Parameters
Author(s) Bhattacharya, P. (Saha Inst.) ; Bhattacharya, Sudeb (Saha Inst.) ; Majumdar, Nayana (Saha Inst.) ; Mukhopadhyay, Supratik (Saha Inst.) ; Sarkar, Sandip (Saha Inst.) ; Colas, Paul (CEA, DSM, Saclay) ; Attie, David (CEA, DSM, Saclay)
Publication 2016
Imprint 10 May 2016
Number of pages 12
Note Comments: arXiv admin note: text overlap with arXiv:1605.02896
arXiv admin note: text overlap with arXiv:1605.02896
In: JINST 9 (2014) C04037
DOI 10.1088/1748-0221/9/04/C04037
Subject category physics.ins-det ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment RD51
Abstract The present work involves the comparison of various bulk Micromegas detectors having different design parameters. Six detectors with amplification gaps of $64, 128, 192, 220  \mu\mathrm{m}$ and mesh hole pitch of $63, 78  \mu\mathrm{m}$ were tested at room temperature and normal gas pressure. Two setups were built to evaluate the effect of the variation of the amplification gap and mesh hole pitch on different detector characteristics. The gain, energy resolution and electron transmission of these Micromegas detectors were measured in Argon-Isobutane (90:10) gas mixture while the measurements of the ion backflow were carried out in P10 gas. These measured characteristics have been compared in detail to the numerical simulations using the Garfield framework that combines packages such as neBEM, Magboltz and Heed.
Copyright/License arXiv nonexclusive-distrib. 1.0



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