Measurement of the drift velocity and transverse diffusion of electrons in liquid xenon with the EXO-200 detector

Albert, J.; Barbeau, P. S.; Beck, Diane M.; Belov, V.; Breidenbach, M.; Brunner, T.; Burenkov, A.; Cao, G. F.; Cen, W. R.; Chambers, Claire; Cleveland, B. T.; Coon, Minor J.; Craycraft, A.; Daniels, T.; Danilov, M.; Daugherty, S. J.; Daughhetee, J.; Davis, J.; Delaquis, S.; Mesrobian-Kabakian, A. Der; DeVoe, R.; Didberidze, T.; Dilling, J.; Dolgolenko, A.; Dolinski, M. J.; Dunford, M.; Fairbank, W. M.; Farine, J.; Feyzbakhsh, S.; Fierlinger, P.; Fudenberg, D.; Gornea, R.; Graham, K.; Gratta, G.; Hall, C.; Hughes, M.; Jewell, M. J.; Johnson, Andrew; Johnson, T. N.; Johnston, S.; Karelin, A.; Kaufman, L. J.; Killick, Ryan; Koffas, T.; Kravitz, S.; Krücken, R.; Kuchenkov, A.; Kumar, Krishna; Lan, Y.; Leonard, D. S.; Licciardi, C.; Lin, Yi-Hsuan; MacLellan, R.; Marino, M. G.; Mong, B.; Moore, David C.; Njoya, O.; Nelson, Robert H.; Odian, A.; Ostrovskiy, I.; Piepke, A.; Pocar, A.; Prescott, C.Y.; Retière, F.; Rowson, P. C.; Russell, J. J.; Schubert, A.; Sinclair, D.; Smith, E.; Stekhanov, V.; Tarka, M.; Tolba, T.; Tsang, R.; Twelker, K.; Vuilleumier, J. L.; Waite, A. P.; Walton, J.; Walton, T.; Weber, M.; Wen, L.; Wichoski, U.; Wood, J. L.; Yang, L.; Yen, Y.-R.; Zeldovich, O.; Zettlemoyer, J.

doi:10.1103/physrevc.95.025502

Cited by 48 publications

(60 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Right: The measured electron drift velocity in liquid xenon as a function of electric field [23], illustrating the energy transfer from the electric field to electrons in the liquid. More measurement results can be found in [24] and [25]. uid, quasifree electrons will drift along the direction of the field, and gain energy from electric field acceleration between collisions.…”

Section: Electron Emission Mechanisms and Overview Of Eee Experimmentioning

confidence: 99%

Electron extraction efficiency study for dual-phase xenon dark matter experiments

Pereverzev

Lenardo

et al. 2019

Phys. Rev. D

View full text Add to dashboard Cite

Dual-phase xenon detectors are widely used in dark matter direct detection experiments, and have demonstrated the highest sensitivities to a variety of dark matter interactions. However, a key component of the dual-phase detector technology-the efficiency of charge extraction from liquid xenon into gas-has not been well characterized. In this paper, we report a new measurement of the electron extraction efficiency (EEE) in a small xenon detector using two mono-energetic decay features of 37 Ar. By achieving stable operation at very high voltages, we measured the EEE values at the highest extraction electric field strength reported to date. For the first time, an apparent saturation of the EEE is observed over a large range of electric field; between 7.5 kV/cm and 10.4 kV/cm extraction field in the liquid xenon the EEE stays stable at the level of 1%(kV/cm) −1 . In the context of electron transport models developed for xenon, we discuss how the observed saturation may help calibrate this relative EEE measurement to the absolute EEE values. In addition, we present the implications of this result not only to current and future xenon-based dark matter searches, but also to xenon-based searches for coherent elastic neutrino-nucleus scatters.

show abstract

Section: Electron Emission Mechanisms and Overview Of Eee Experimmentioning

confidence: 99%

Electron extraction efficiency study for dual-phase xenon dark matter experiments

Pereverzev

Lenardo

et al. 2019

Phys. Rev. D

View full text Add to dashboard Cite

show abstract

“…Ionized electrons produced in the first stage of simulation that fall within the drift region of the detector are diffused radially according to their drift time, using an electric-field-dependent transverse-diffusion coefficient determined from [19]. Currently no diffusion in the longitudinal direction is included in simulation.…”

Section: Signal Simulationmentioning

confidence: 99%

Characterization of an Ionization Readout Tile for nEXO

et al. 2018

Self Cite

View full text Add to dashboard Cite

A new design for the anode of a time projection chamber, consisting of a charge-detecting “tile", is investigated for use in large scale liquid xenon detectors. The tile is produced by depositing 60 orthogonal metal charge-collecting strips, 3 mm wide, on a 10 cm × 10 cm fused-silica wafer. These charge tiles may be employed by large detectors, such as the proposed tonne-scale nEXO experiment to search for neutrinoless double-beta decay. Modular by design, an array of tiles can cover a sizable area. The width of each strip is small compared to the size of the tile, so a Frisch grid is not required. A grid-less, tiled anode design is beneficial for an experiment such as nEXO, where a wire tensioning support structure and Frisch grid might contribute radioactive backgrounds and would have to be designed to accommodate cycling to cryogenic temperatures. The segmented anode also reduces some degeneracies in signal reconstruction that arise in large-area crossed-wire time projection chambers. A prototype tile was tested in a cell containing liquid xenon. Very good agreement is achieved between the measured ionization spectrum of a 207Bi source and simulations that include the microphysics of recombination in xenon and a detailed modeling of the electrostatic field of the detector. An energy resolution σ/E=5.5% is observed at 570 keV, comparable to the best intrinsic ionization-only resolution reported in literature for liquid xenon at 936 V/cm.

show abstract

“…within O(10 µm) of the decay vertex. These separations are much smaller than the spatial resolving power of the LUX detector (O(1 mm) [18]) or the typical electron diffusion distances during drift (also O(1 mm) [19]).…”

Section: Fig 1 Decay Scheme Of 83mmentioning

confidence: 97%