On the possibility of positive-ion detection in gaseous TPCs and its potential use for neutrinoless double beta decay searches in 136Xe

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Abstract

The neutralization of slow positive ions on solid surfaces can lead to the emission of secondary electrons in Auger-type processes. We discuss the possibility of harnessing such mechanisms to the detection of positive ions in gaseous TPCs. Applied to high pressure xenon, the proposed idea may enable reconstructing with high accuracy the topology of candidate neutrinoless double beta decay events of 136Xe without sacrificing the energy resolution of pure Xe gas. Candidate secondary electron emitters are discussed, as well as the expected efficiencies, challenges and potential pitfalls.

Original languageEnglish
Article number012004
JournalJournal of Physics: Conference Series
Volume1029
Issue number1
DOIs
StatePublished - 11 Jun 2018
Event8th Symposium on Large TPCs for Low Energy Rare Event Detection - Paris, France
Duration: 5 Dec 20167 Dec 2016

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