Test and simulation of a MICROMEGAS detector
- Received Date: 2011-01-17
- Accepted Date: 2011-04-07
- Available Online: 2011-11-05
Abstract: We report on the recent test results of a MICROMEGAS detector in terms of position resolution, time resolution and efficiency. With a Ar + CO2 (10%) gas mixture and a strip pitch of 200 μm an accuracy of 80 μm in sigma on the position has been measured. The time resolution is better than 20 ns and a cosmic ray detection efficiency of 94% was obtained. A Monte Carlo simulation indicates that transverse diffusion, gain fluctuation and electronic noise limit the position resolution.