Speaker
Description
Being state-of-the-art, the Micro-Pattern Gaseous Detectors (MPGD) are widely accepted in several particle physics experiments like ATLAS, COMPASS, CMS, ALICE, CBM, EIC, ILC, etc. Micromegas is a type of MPGD which is famous for its simple single-stage amplification, high and stable gain, low ion feedback, and excellent spatial and temporal resolutions. It is a reliable candidate in many of the aforementioned experiments. The chance of O2 contamination in a gaseous detector gas is not negligible as the abundance of O2 in the air is nearly 21%. Being an electronegative gas, O2 can capture electrons inside a gaseous detector. Therefore, while running a gaseous detector of large size, O2 contamination, even at a very low concentration, may degrade the detector performance. We have systematically studied one of the possible reasons for O2 contamination of the gas inside a detector. Then by infusing O2 inside a resistive Micromegas chamber in a controlled and precise way, we have studied its effects on the fluctuation of primary electrons and on the instability of gas-gain of the detector. Both aspects of our study have been supported by numerical investigations.
Details
Deb Sankar Bhattacharya, University of Würzburg, Germany
| Is this abstract from experiment? | No |
|---|---|
| Name of experiment and experimental site | N/A |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | No |
