Multichannel wire gas electron multipliers

Abstract

A simple technique for manufacturing electrodes of multichannel wire gas electron multipliers was developed. The maximum proportional multiplication factor of ionization electrons K ^max = 10³ was obtained when the chamber containing a multichannel wire gas electron multiplier was filled with a mixture of Ar + 10%C₂H₄ at a pressure of 1 atm (abs.) and the drift (ionization) gap of the chamber was irradiated with β particles (⁶³Ni). Under irradiation with α particles, K ^max = 10³ at a pressure of 1 atm (abs.) and 3 × 10³ at 0.4 atm (abs.). When the chamber was filled with a mixture of Ne + 10%C₂H₄ at a pressure of 1 atm (abs.) and exposed to β particles, K ^max = 4 × 10³ was obtained.