Abstract
Abstract
We report on the first observation of electroluminescence
amplification with a MicroStrip Plate immersed in liquid xenon. The
electroluminescence of the liquid, induced by alpha-particles, was
observed in an intense non-uniform electric field in the vicinity of
8-μm narrow anode strips interlaced with wider cathode ones,
deposited on the same side of a glass substrate. The
electroluminescence yield in the liquid reached a value of
(35.5 ± 2.6) VUV photons/electron. We propose ways of enhancing
this response with more appropriate microstructures towards their
potential incorporation as sensing elements in single-phase
noble-liquid detectors.