Measurements and calculations of gas gains in Ne-N-2 mixtures - Pressure and concentration scaling


Kowalski T. Z. , Sahin Ö.

JOURNAL OF INSTRUMENTATION, vol.15, no.12, 2020 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 12
  • Publication Date: 2020
  • Doi Number: 10.1088/1748-0221/15/12/p12011
  • Journal Name: JOURNAL OF INSTRUMENTATION
  • Journal Indexes: Science Citation Index Expanded, Scopus, Compendex, Index Islamicus, INSPEC
  • Keywords: Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc), Avalanche-induced secondary effects, Charge transport and multiplication in gas, Electron multipliers (gas), ARGON-ISOBUTANE MIXTURES, IONIZATION, NEON

Abstract

Systematic high-precision measurements of gas gains in Ne-N-2 mixtures have been made. The concentration of N-2 was changed from 2,5% to 20% and the mixtures pressures were varying from 0.05 to 1.8 atm. In Ne-N-2 mixtures, excitation energy of Ne atom can be used to ionize N-2 molecule by the Penning transfer. Comparing the measured and calculated with MAGBOLTZ simulation program gas gains the Penning energy transfer probability and the second Townsend ionization coefficient, beta, describing secondary processes playing a role in avalanche formations have been determined.