Comparison of Helium and Argon in Ionization Detectors

Abstract

R. BERRY¹ has recently directed attention to the use of helium in place of argon in a conventional argon detector. All the rare gases should behave in the same manner as argon, that is, collision of metastable rare gas atoms with molecules of other gases should deactivate the metastables with the possibility of forming ions from the colliding molecules in the appropriate conditions.