Publications (14)
Geiger Mode APD performance in a cryogenic two-phase Ar avalanche detector based on THGEMs
A. Bondar, A. Buzulutskov, A. Grebenuk +4
Characteristic properties of a Geiger Mode APD (G-APD) in a THGEM-based cryogenic two-phase Ar avalanche detector were studied in view of potential applications in rare-event exper…
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…
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…
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…
First results of the two-phase argon avalanche detector performance with CsI photocathode
A. Bondar, A. Buzulutskov, A. Grebenuk +3
The performance of a two-phase Ar avalanche detector with CsI photocathode was studied, with regard to potential application in coherent neutrino-nucleus scattering and dark matter…
A two-phase argon avalanche detector operated in a single electron counting mode
A. Bondar, A. Buzulutskov, A. Grebenuk +6
The performance of a two-phase Ar avalanche detector in a single electron counting mode was studied, with regard to potential application in coherent neutrino-nucleus scattering an…
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…
Thick GEM versus thin GEM in two-phase argon avalanche detectors
A. Bondar, A. Buzulutskov, A. Grebenuk +3
The performance of thick GEMs (THGEMs) was compared to that of thin GEMs in two-phase Ar avalanche detectors, in view of their potential application in coherent neutrino-nucleus sc…
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…
Electron emission properties of two-phase argon and argon-nitrogen avalanche detectors
A. Bondar, A. Buzulutskov, A. Grebenuk +2
Electron emission properties of two-phase Ar avalanche detectors are studied. The detectors investigated comprised a liquid Ar or Ar+N2 layer followed by a multi-GEM multiplier ope…
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…
Direct observation of avalanche scintillations in a THGEM-based two-phase Ar avalanche detector using Geiger-mode APD
A. Bondar, A. Buzulutskov, A. Grebenuk +4
A novel concept of optical signal recording in two-phase avalanche detectors, with Geiger-mode Avalanche Photodiodes (G-APD) is described. Avalanche-scintillation photons were meas…
Two-phase argon and xenon avalanche detectors based on Gas Electron Multipliers
A. Bondar, A. Buzulutskov, A. Grebenuk +3
We study the performance of two-phase avalanche detectors based on Gas Electron Multipliers (GEMs) and operated in an electron-avalanching mode in Ar and Xe. Emission, gain, energy…
Recent results on the properties of two-phase argon avalanche detectors
A. Bondar, A. Buzulutskov, A. Grebenuk +2
The characteristic properties of two-phase Ar avalanche detectors, including those obtained with CsI photocathode, are further studied. Such detectors are relevant in the field of…