Measurements and calculations of gas gains in methane-based TEG mixtures


Kowalski T., Şahin I.

Journal of Instrumentation, vol.17, no.11, 2022 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 11
  • Publication Date: 2022
  • Doi Number: 10.1088/1748-0221/17/11/p11024
  • Journal Name: Journal of Instrumentation
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, Index Islamicus, INSPEC
  • Keywords: Charge transport and multiplication in gas, Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc), Gaseous detectors
  • Bursa Uludag University Affiliated: Yes

Abstract

© 2022 IOP Publishing Ltd and Sissa Medialab.The gas gains in the methane-based tissue equivalent gas (TEG) mixture (64.4% CH4 + 32.5% CO2 + 3.1% N2) were measured in single wire proportional counters and calculated with Magboltz simulation program for various mixture pressures. The calculated gain values were always greater than the measured ones for all pressures. The source of the discrepancies was investigated in terms of dissociation of the molecules and non-equilibrium conditions. The impacts of both energy loss mechanisms on gas gain rise as the mixture pressure decreases.