172 citations · 302 across the 10 of their papers we have counts for
10 papers
Precision Measurement of the Specific Activity of Ar in Atmospheric Argon with the DEAP-3600 Detector
P. Adhikari, R. Ajaj, M. Alpízar-Venegas +147
The specific activity of the beta decay of Ar in atmospheric argon is measured using the DEAP-3600 detector. DEAP-3600, located 2 km underground at SNOLAB, uses a total of (…
Mineral Detection of Neutrinos and Dark Matter. A Whitepaper
Sebastian Baum, Patrick Stengel, Natsue Abe +66
Minerals are solid state nuclear track detectors - nuclear recoils in a mineral leave latent damage to the crystal structure. Depending on the mineral and its temperature, the dama…
The upgraded low-background germanium counting facility Gator for high-sensitivity -ray spectrometry
G. R. Araujo, L. Baudis, Y. Biondi +2
We describe the upgrade and performance of the high-purity germanium counting facility Gator, which is dedicated to low-background -ray spectrometry. Gator is operated at the Gr…
Passive low energy nuclear recoil detection with color centers -- PALEOCCENE
Krystal Alfonso, Gabriela R. Araujo, Laura Baudis +13
The PALEOCCENE concept offers the potential for room-temperature, passive and robust detectors in the gram to kilogram range for the detection of low-energy nuclear recoil events.…
Ultraviolet-induced fluorescence of poly(methyl methacrylate) compared to 1,1,4,4-tetraphenyl-1,3-butadiene down to 4 K
E. Ellingwood, H. Benmansour, Q. Hars +16
Several particle-physics experiments use poly(methyl methacrylate) (a.k.a. PMMA or acrylic) vessels to contain liquid scintillators. Superluminal charged particles emitted from rad…
R&D of Wavelength-Shifting Reflectors and Characterization of the Quantum Efficiency of Tetraphenyl Butadiene and Polyethylene Naphthalate in Liquid Argon
G. R. Araujo, L. Baudis, N. McFadden +3
Detectors based on liquid argon (LAr) often require surfaces that can shift vacuum ultraviolet (VUV) light and reflect the visible shifted light. For the LAr instrumentation of the…
Temperature-dependent fluorescence emission spectra of acrylic (PMMA) and tetraphenyl butadiene (TPB) excited with UV light
J. M. Corning, G. R. Araujo, P. C. F. Di Stefano +3
Acrylic (poly(methyl methacrylate) or PMMA) is commonly used as a vessel to hold scintillating liquids in rare-event searches. Certain types of PMMA can fluoresce with a low effici…
Photoluminescence response of acrylic (PMMA) and polytetrafluoroethylene (PTFE) to ultraviolet light
G. R. Araujo, T. Pollmann, A. Ulrich
Some publications indicate that poly(methyl methacrylate) (PMMA) and polytetrafluoroethylene (PTFE) exhibit low levels of photoluminesence (fluorescence and/or phosphorescence) whe…
Search for dark matter with a 231-day exposure of liquid argon using DEAP-3600 at SNOLAB
R. Ajaj, P. -A. Amaudruz, G. R. Araujo +99
DEAP-3600 is a single-phase liquid argon (LAr) direct-detection dark matter experiment, operating 2 km underground at SNOLAB (Sudbury, Canada). The detector consists of 3279 kg of…
Polyethylene naphthalate film as a wavelength shifter in liquid argon detectors
M. Kuźniak, B. Broerman, T. Pollmann +1
Liquid argon-based scintillation detectors are important for dark matter searches and neutrino physics. Argon scintillation light is in the vacuum ultraviolet region, making it har…