Improved 10B-loaded liquid scintillator with pulse-shape discrimination

Greenwood, L.R.; Chellew, N. R.

doi:10.1063/1.1135853

Cited by 18 publications

(12 citation statements)

References 7 publications

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“…Because of quenching, the scintillation light output of the capture to 7 Li(g.s.) is expected to be in the β/γ -equivalent range 50 to 60 keV [23,24]. Prelim- inary measurements with our scintillator appear consistent with this expectation.…”

Section: The Darkside-50 Detectorssupporting

confidence: 83%

First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso

et al. 2015

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We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4±0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a View the MathML source exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1×10−44 cm2 for a WIMP mass of 100 Gev/c2

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Section: The Darkside-50 Detectorssupporting

confidence: 83%

First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso

et al. 2015

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“…As a NoWaSH derivative, first feasibility studies were performed with metal doping via a boronic acid. In the past, there were approaches using trimethylborate (TMB) to achieve B-concentrations of several percent [21,22]. Due to the toxicity of the TMB, we tested tributylborate (TBB, (C 4 H 9 O) 3 B) instead, which is advantageous in terms of chemical hazard classification.…”

Section: Boron Loadingmentioning

confidence: 99%

Novel opaque scintillator for neutrino detection

Buck

Gramlich²,

Schoppmann

2019

J. Inst.

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A: There is rising interest in organic scintillators with low scattering length for future neutrino detectors. Therefore, a new scintillator system was developed based on admixtures of paraffin wax in linear alkyl benzene. The transparency and viscosity of this gel-like material can be tuned by temperature adjustment. Whereas it is a colorless transparent liquid at temperatures around 40 • C, it has a milky wax structure below 20 • C. The production and properties of such a scintillator as well as its advantages compared to transparent liquids are described.

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“…The energy deposition in the scintillator due to a neutron capture on 10 B is at least 60 keV [31], which results in a high detection efficiency. This, together with the short neutron capture time, makes it possible to operate the veto with high event rate, allowing for a direct immersion of the PMTs in the scintillator without any additional inert buffer layer.…”

Section: The Neutron Vetomentioning

confidence: 99%

The DarkSide Multiton Detector for the Direct Dark Matter Search

Aalseth

Agnes

Alton

et al. 2015

Advances in High Energy Physics

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Although the existence of dark matter is supported by many evidences, based on astrophysical measurements, its nature is still completely unknown. One major candidate is represented by weakly interacting massive particles (WIMPs), which could in principle be detected through their collisions with ordinary nuclei in a sensitive target, producing observable low-energy (<100 keV) nuclear recoils. The DarkSide program aims at the WIPMs detection using a liquid argon time projection chamber (LAr-TPC). In this paper we quickly review the DarkSide program focusing in particular on the next generation experiment DarkSide-G2, a 3.6-ton LAr-TPC. The different detector components are described as well as the improvements needed to scale the detector from DarkSide-50 (50 kg LAr-TPC) up to DarkSide-G2. Finally, the preliminary results on background suppression and expected sensitivity are presented.

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Improved 10B-loaded liquid scintillator with pulse-shape discrimination

Cited by 18 publications

References 7 publications

First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso

First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso

Novel opaque scintillator for neutrino detection

The DarkSide Multiton Detector for the Direct Dark Matter Search

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