Published 2016 | Version v1
Journal article Metadata-only

Performance of the LAr scintillation veto of Gerda Phase II

Creators

  • 1. Physik-Department and Excellence Cluster Universe, Technische Universitaet Muenchen, James-Franck-Strasse, 85748 Garching (Germany)

Description

Gerda is an experiment to search for the neutrinoless double beta decay in 76Ge. Results of Phase I have been published in summer 2013 and Gerda has been upgraded to Phase II. To reach the aspired background index of ∝10-3 cts/(keV.kg.yr) for Phase II active background-suppression techniques are applied, including an active liquid argon (LAr) veto. It has been demonstrated with the LArGe test facility that the detection of argon scintillation light can be used to effectively suppress background events in the germanium detectors, which simultaneously deposit energy in the LAr. The light instrumentation consisting of photomultiplier tubes (PMT) and wavelength-shifting fibers connected to silicon photomultipliers (SiPM) has been installed in Gerda. In this talk the low background design of the LAr veto and its performance during Phase II start-up is reported.

Additional details

Identifiers

URL
http://www.dpg-verhandlungen.de;

Publishing Information

Journal Title
Verhandlungen der Deutschen Physikalischen Gesellschaft
Journal Issue
Hamburg 2016 issue
Series
Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 51(2)
Journal Page Range
[1 p.]
ISSN
0420-0195
CODEN
VDPEAZ

Conference

Title
DPG-Fruehjahrstagung 2016 (Spring meeting) of the section matter and cosmos (SMuK) together with the divisions gravity and relativity, radiation and medical physics, particle physics, theoretical and mathematical physics, and the working group philosophy of physics
Original Conference Title
DPG-Fruehjahrstagung 2016 der Sektion Materie und Kosmos (SMuK) gemeinsam mit den Fachverbaenden Gravitation und Relativitaetstheorie, Strahlen- und Medizinphysik, Teilchenphysik, Theoretische und Mathematische Grundlagen der Physik sowie der Arbeitsgruppe Philosophie der Physik
Dates
29 Feb - 4 Mar 2016
Place
Hamburg (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
48010315
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTICOINCIDENCE; ARGON; BACKGROUND RADIATION; COINCIDENCE METHODS; LIQUEFIED GASES; LIQUID SCINTILLATION DETECTORS; LOW LEVEL COUNTERS; OPTICAL FIBERS; OPTICAL SYSTEMS; PERFORMANCE; PHOTODIODES; PHOTOMULTIPLIERS; SCINTILLATOR-PHOTODIODE DETECTORS; SILICON DIODES
Descriptors DEC
COUNTING TECHNIQUES; ELEMENTS; FIBERS; FLUIDS; GASES; LIQUIDS; MEASURING INSTRUMENTS; NONMETALS; PHOTOTUBES; RADIATION DETECTORS; RADIATIONS; RARE GASES; SCINTILLATION COUNTERS; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES

Optional Information

Notes
Session: T 16.5 Mo 12:05 and HK 41.4 Mi 17:45 (da16); No further information available
Collaborations
GERDA-Collaboration