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Separating Ar from Ar by cryogenic distillation with Aria for dark matter searches
DarkSide Collaboration, P. Agnes, S. Albergo +309
The Aria project consists of a plant, hosting a 350 m cryogenic isotopic distillation column, the tallest ever built, which is currently in the installation phase in a mine shaft a…
Charged particle identification with the liquid xenon calorimeter of the CMD-3 detector
V. L. Ivanov, G. V. Fedotovich, R. R. Akhmetshin +43
The paper describes a method of the charged particle identification, developed for the \mbox{CMD-3} detector, installed at the VEPP-2000 collider. The method is based…
Observation of unusual slow components in electroluminescence signal of two-phase argon detector
A. Bondar, E. Borisova, A. Buzulutskov +3
Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter search to record ionization signals in the gas phase induced by particle scatter…
Observation of primary scintillations in the visible range in liquid argon doped with methane
A. Bondar, E. Borisova, A. Buzulutskov +4
Neutron veto detector based on liquid scintillator containing hydrogen atoms is an integral part of any underground experiment for dark matter search. So far, a flammable mixture o…
SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range
The DarkSide collaboration, C. E. Aalseth, S. Abdelhakim +312
Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle…
Ion detector for Accelerator Mass Spectrometry based on low-pressure TPC with THGEM readout
A. Bondar, A. Buzulutskov, E. Frolov +4
A new technique for ion identification in Accelerator Mass Spectrometry (AMS) has been proposed by measuring the ion track ranges using a low-pressure TPC. As a proof of principle,…
Electron transport and electric field simulations in two-phase detectors with THGEM electrodes
Alexander Bondar, Alexei Buzulutskov, Egor Frolov +3
One of the main features of two-phase detectors with electroluminescence (EL) gap being developed in our laboratory for dark matter search is the extensive use of THGEMs (Thick Gas…
Neutral bremsstrahlung in two-phase argon electroluminescence: further studies and possible applications
A. Bondar, A. Buzulutskov, A. Dolgov +5
We further study the effect of neutral bremsstrahlung (NBrS) in two-phase argon electroluminescence (EL), revealed recently in [1]. The absolute EL yield due to NBrS effect, in the…
COMET Phase-I Technical Design Report
The COMET Collaboration, R. Abramishvili, G. Adamov +191
The Technical Design for the COMET Phase-I experiment is presented in this paper. COMET is an experiment at J-PARC, Japan, which will search for neutrinoless conversion of muons in…
Characterization of a 109Cd gamma-ray source for the two-phase argon detector
A. Bondar, A. Buzulutskov, A. Dolgov +6
At present, a two-phase argon detector is being developed in our laboratory for dark matter search and low-energy neutrino experiments. To calibrate its energy scale a Cd g…
DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS
C. E. Aalseth, F. Acerbi, P. Agnes +282
Building on the successful experience in operating the DarkSide-50 detector, the DarkSide Collaboration is going to construct DarkSide-20k, a direct WIMP search detector using a tw…
Cryogenic Characterization of FBK RGB-HD SiPMs
C. E. Aalseth, F. Acerbi, P. Agnes +268
We report on the cryogenic characterization of Red Green Blue - High Density (RGB-HD) SiPMs developed at Fondazione Bruno Kessler (FBK) as part of the DarkSide program of dark matt…
Two-phase Cryogenic Avalanche Detector with electroluminescence gap operated in argon doped with nitrogen
A. Bondar, A. Buzulutskov, A. Dolgov +4
A two-phase Cryogenic Avalanche Detector (CRAD) with electroluminescence (EL) gap, operated in argon doped with a minor (497 ppm) admixture of nitrogen, has been studied. The…
Proportional electroluminescence in two-phase argon and its relevance to rare-event experiments
A. Bondar, A. Buzulutskov, A. Dolgov +4
Proportional electroluminescence (EL) in gaseous Ar has for the first time been systematically studied in the two-phase mode, at 87 K and 1.00 atm. Liquid argon had a minor (56 ppm…
Characterization of photo-multiplier tubes for the Cryogenic Avalanche Detector
A. Bondar, A. Buzulutskov, A. Dolgov +3
New Cryogenic Avalanche Detector (CRAD) with ultimate sensitivity, that will be able to detect one primary electron released in the cryogenic liquid, is under development in the La…
X-ray ionization yields and energy spectra in liquid argon
A. Bondar, A. Buzulutskov, A. Dolgov +2
The main purpose of this work is to provide reference data on X-ray ionization yields and energy spectra in liquid Ar to the studies in the field of Cryogenic Avalanche Detectors (…
MPPC versus MRS APD in two-phase Cryogenic Avalanche Detectors
A. Bondar, A. Buzulutskov, A. Dolgov +2
Two-phase Cryogenic Avalanche Detectors (CRADs) with combined THGEM/GAPD multiplier have become an emerging potential technique for dark matter search and coherent neutrino-nucleus…
Performance degradation of Geiger-mode APDs at cryogenic temperatures
A. Bondar, A. Buzulutskov, A. Dolgov +5
Two-phase Cryogenic Avalanche Detectors (CRADs) with THGEM multipliers, optically read out with Geiger-mode APDs (GAPDs), were proposed as potential technique for charge recording…
First demonstration of THGEM/GAPD-matrix optical readout in two-phase Cryogenic Avalanche Detector in Ar
A. Bondar, A. Buzulutskov, A. Dolgov +5
The multi-channel optical readout of a THGEM multiplier coupled to a matrix of 3x3 Geiger-mode APDs (GAPDs) was demonstrated in a two-phase Cryogenic Avalanche Detector (CRAD) in A…
Two-phase Cryogenic Avalanche Detectors with THGEM and hybrid THGEM/GEM multipliers operated in Ar and Ar+N2
A. Bondar, A. Buzulutskov, A. Dolgov +6
Two-phase Cryogenic Avalanche Detectors (CRADs) with GEM and THGEM multipliers have become an emerging potential technique for charge recording in rare-event experiments. In this w…
Study of infrared scintillations in gaseous and liquid argon - Part II: light yield and possible applications
A. Bondar, A. Buzulutskov, A. Dolgov +6
We present here a comprehensive study of the light yield of primary and secondary scintillations produced in gaseous and liquid Ar in the near infrared (NIR) and visible region, at…
Study of infrared scintillations in gaseous and liquid argon - Part I: methodology and time measurements
A. Bondar, A. Buzulutskov, A. Dolgov +3
A methodology to measure Near Infrared (NIR) scintillations in gaseous and liquid Ar, using Geiger-mode APDs (GAPDs) sensitive in the NIR and pulsed X-ray irradiation, is described…
On the low-temperature performances of THGEM and THGEM/G-APD multipliers in gaseous and two-phase Xe
A. Bondar, A. Buzulutskov, A. Grebenuk +5
The performances of THGEM multipliers in two-phase Xe avalanche mode are presented for the first time. Additional results on THGEM operation in gaseous Xe at cryogenic temperatures…
Infrared scintillation yield in gaseous and liquid argon
A. Buzulutskov, A. Bondar, A. Grebenuk
The study of primary and secondary scintillations in noble gases and liquids is of paramount importance to rare-event experiments using noble gas media. In the present work, the sc…