Gas Electron Multiplier (GEM)–based gaseous detectors are widely used in high-energy physics experiments due to their high gain, high rate capability, good position and time resolution and low discharge probability. Recent experimental studies suggest that their position resolution can be further improved by using smaller pitch sizes in a triple GEM configuration compared to the standard 140 \(\mu \) m pitch size stacked together. To explore the impact of smaller pitch sizes on its various performance properties, we first modelled a single GEM using the standard configuration and validated the simulation framework by replicating experimental trends. We then extended our analysis to investigate reduced pitch sizes of 90 \(\mu \) m and 60 \(\mu \) m, which have been implemented in triple GEM configurations.

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Simulation Study of Different Pitch Sizes GEM Detectors and Their Performance Comparison

  • Rajiv Gupta,
  • Sunidhi Saxena,
  • Gauri Devi,
  • Arpit Singh,
  • Ajay Kumar

摘要

Gas Electron Multiplier (GEM)–based gaseous detectors are widely used in high-energy physics experiments due to their high gain, high rate capability, good position and time resolution and low discharge probability. Recent experimental studies suggest that their position resolution can be further improved by using smaller pitch sizes in a triple GEM configuration compared to the standard 140 \(\mu \) m pitch size stacked together. To explore the impact of smaller pitch sizes on its various performance properties, we first modelled a single GEM using the standard configuration and validated the simulation framework by replicating experimental trends. We then extended our analysis to investigate reduced pitch sizes of 90 \(\mu \) m and 60 \(\mu \) m, which have been implemented in triple GEM configurations.