A gas scintillation drift chamber for heavy ion detection

Abstract

A gas scintillation drift chamber has been exposed to the heavy ion beam at Berkeley, Ca, USA. The drift velocity of an ar(98%)-N₂ (2%) gas mixture as a function of the reduced electric field has been measured. The detector provided a spatial resolution of 500 μm and an energy resolution of 6% for penetrating 518 MeV / nuc Fe-particles.