Liquid Hole Multipliers: Bubble-assisted electroluminescence in liquid xenon

L. Arazi; E. Erdal; A. E.C. Coimbra; M. L. Rappaport; D. Vartsky; V. Chepel; A. Breskin

doi:10.1088/1748-0221/10/08/P08015

Liquid Hole Multipliers: Bubble-assisted electroluminescence in liquid xenon

L. Arazi, E. Erdal, A. E.C. Coimbra, M. L. Rappaport, D. Vartsky, V. Chepel, A. Breskin

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

In this work we discuss the mechanism behind the large electroluminescence signals observed at relatively low electric fields in the holes of a Thick Gas Electron Multiplier (THGEM) electrode immersed in liquid xenon. We present strong evidence that the scintillation light is generated in xenon bubbles trapped below the THGEM holes. The process is shown to be remarkably stable over months of operation, providing - under specific thermodynamic conditions - energy resolution similar to that of present dual-phase liquid xenon experiments. The observed mechanism may serve as the basis for the development of Liquid Hole Multipliers (LHMs), capable of producing local charge-induced electroluminescence signals in large-volume single-phase noble-liquid detectors for dark matter and neutrino physics experiments.

Original language	English
Article number	P08015
Journal	Journal of Instrumentation
Volume	10
Issue number	8
DOIs	https://doi.org/10.1088/1748-0221/10/08/P08015
State	Published - 1 Aug 2015
Externally published	Yes

Keywords

Charge transport
double-phase); Micropattern gaseous detectors
ionization
multiplication and electroluminescence in rare gases and liquids; Noble liquid detectors (scintillation

ASJC Scopus subject areas

Mathematical Physics
Instrumentation

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10.1088/1748-0221/10/08/P08015

Cite this

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title = "Liquid Hole Multipliers: Bubble-assisted electroluminescence in liquid xenon",

abstract = "In this work we discuss the mechanism behind the large electroluminescence signals observed at relatively low electric fields in the holes of a Thick Gas Electron Multiplier (THGEM) electrode immersed in liquid xenon. We present strong evidence that the scintillation light is generated in xenon bubbles trapped below the THGEM holes. The process is shown to be remarkably stable over months of operation, providing - under specific thermodynamic conditions - energy resolution similar to that of present dual-phase liquid xenon experiments. The observed mechanism may serve as the basis for the development of Liquid Hole Multipliers (LHMs), capable of producing local charge-induced electroluminescence signals in large-volume single-phase noble-liquid detectors for dark matter and neutrino physics experiments.",

keywords = "Charge transport, double-phase); Micropattern gaseous detectors, ionization, multiplication and electroluminescence in rare gases and liquids; Noble liquid detectors (scintillation",

author = "L. Arazi and E. Erdal and Coimbra, {A. E.C.} and Rappaport, {M. L.} and D. Vartsky and V. Chepel and A. Breskin",

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T2 - Bubble-assisted electroluminescence in liquid xenon

AU - Arazi, L.

AU - Erdal, E.

AU - Coimbra, A. E.C.

AU - Rappaport, M. L.

AU - Vartsky, D.

AU - Chepel, V.

AU - Breskin, A.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - In this work we discuss the mechanism behind the large electroluminescence signals observed at relatively low electric fields in the holes of a Thick Gas Electron Multiplier (THGEM) electrode immersed in liquid xenon. We present strong evidence that the scintillation light is generated in xenon bubbles trapped below the THGEM holes. The process is shown to be remarkably stable over months of operation, providing - under specific thermodynamic conditions - energy resolution similar to that of present dual-phase liquid xenon experiments. The observed mechanism may serve as the basis for the development of Liquid Hole Multipliers (LHMs), capable of producing local charge-induced electroluminescence signals in large-volume single-phase noble-liquid detectors for dark matter and neutrino physics experiments.

AB - In this work we discuss the mechanism behind the large electroluminescence signals observed at relatively low electric fields in the holes of a Thick Gas Electron Multiplier (THGEM) electrode immersed in liquid xenon. We present strong evidence that the scintillation light is generated in xenon bubbles trapped below the THGEM holes. The process is shown to be remarkably stable over months of operation, providing - under specific thermodynamic conditions - energy resolution similar to that of present dual-phase liquid xenon experiments. The observed mechanism may serve as the basis for the development of Liquid Hole Multipliers (LHMs), capable of producing local charge-induced electroluminescence signals in large-volume single-phase noble-liquid detectors for dark matter and neutrino physics experiments.

KW - Charge transport

KW - double-phase); Micropattern gaseous detectors

KW - ionization

KW - multiplication and electroluminescence in rare gases and liquids; Noble liquid detectors (scintillation

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JF - Journal of Instrumentation

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ER -

Liquid Hole Multipliers: Bubble-assisted electroluminescence in liquid xenon

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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