Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/328277
Type: Artigo
Title: Arapuca A New Device For Liquid Argon Scintillation Light Detection
ARAPUCA a new device for liquid argon scintillation light detection
Author: Machado, A. A.
Segreto, E.
Abstract: We present a totally innovative device for the detection of liquid argon scintillation light, that has been named ARAPUCA (Argon R&D Advanced Program at UniCAmp). It is composed of a passive light collector and of active devices. The latters are standard SiPMs that operate at liquid argon temperature, while the passive collector is based on a new technology, never explored in this field before. It is a photon trap, that allows to collect light with extremely high efficiency. The total detection efficiency of the device can be tuned by modifying the ratio between the area of the active devices (SiPM) and the area of the optical window. For example, it will allow to reach a detection efficiency at the level of 1% on a surface of 50 x 50 cm(2) with an active coverage of 2 x 2 cm(2) (two/three large area SiPM). It is also a cheap device, since the major part of its cost is represented by the active devices. For these reason this appears to be the ideal device for scintillation light detection in large Time Projection Chambers. With appropriate modifications it can be used also in next generation Dark Matter detectors.
We present a totally innovative device for the detection of liquid argon scintillation light, that has been named ARAPUCA (Argon R&D Advanced Program at UniCAmp). It is composed of a passive light collector and of active devices. The latters are standard SiPMs that operate at liquid argon temperature, while the passive collector is based on a new technology, never explored in this field before. It is a photon trap, that allows to collect light with extremely high efficiency. The total detection efficiency of the device can be tuned by modifying the ratio between the area of the active devices (SiPM) and the area of the optical window. For example, it will allow to reach a detection efficiency at the level of 1% on a surface of 50 x 50 cm(2) with an active coverage of 2 x 2 cm(2) (two/three large area SiPM). It is also a cheap device, since the major part of its cost is represented by the active devices. For these reason this appears to be the ideal device for scintillation light detection in large Time Projection Chambers. With appropriate modifications it can be used also in next generation Dark Matter detectors.
Subject: Scintillators, Scintillation And Light Emission Processes (solid, Gas And Liquid Scintillators)
Noble Liquid Detectors (scintillation, Ionization, Double-phase)
Neutrino Detectors
Dark Matter Detectors (wimps, Axions, Etc.)
Cintiladores, Detectores de neutrinos, Matéria escura (Astronomia)
Country: Reino Unido
Editor: Institute of Physics Publishing
Citation: Journal Of Instrumentation. Iop Publishing Ltd, v. 11, p. , 2016.
Rights: fechado
Identifier DOI: 10.1088/1748-0221/11/02/C02004
Address: http://iopscience.iop.org/article/10.1088/1748-0221/11/02/C02004/meta
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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