Reduction of ion back flow using a quadruple GEM detector with various gas mixtures
arXiv:2110.08838 · doi:10.1016/j.nima.2022.167460
Abstract
In gaseous tracking detectors with a large gaseous volume multiple layers of Gas Electron Multipliers (GEM) can be used to block positive ions from flowing back into the active volume, which is detrimental to the tracking performance. We report on studies of effective gain, ion backflow (IBF), and energy resolution in quadruple GEM detectors, and on strategies for minimizing IBF by optimizing the operating voltages of the individual GEM layers and the potential differences between different layers.
arXiv comment14 pages, 11 figures, 4 tables
References in corpus (12)
- The STAR Time Projection Chamber: A Unique Tool for Studying High Multiplicity Events at RHIC
- The ALICE TPC, a large 3-dimensional tracking device with fast readout for ultra-high multiplicity events
- The upgrade of the ALICE TPC with GEMs and continuous readout
- A Time Projection Chamber for High-Rate Experiments: Towards an Upgrade of the ALICE TPC
- Charge Transfer and Charge Broadening of GEM Structures in High Magnetic Fields
- Layout and Assembly Technique of the GEM Chambers for the Upgrade of the CMS First Muon Endcap Station
- A triple GEM detector with two dimensional readout
- Combination of two Gas Electron Multipliers and a Micromegas as gain elements for a time projection chamber
- A GEM readout with radial zigzag strips and linear charge-sharing response
- Measurements of ion mobility in argon and neon based gas mixtures
- Ion backflow studies with a triple-GEM stack with increasing hole pitch
- Effective gain and Ion Back Flow study of triple and quadruple gem detector