Propagation of whistlers in a plasma with a magnetic field duct

Gushchin, M. E.; Korobkov, S. V.; Костров, А. В.; Strikovsky, A. V.; Zaboronkova, T. M.

doi:10.1134/1.1921318

Cited by 13 publications

(21 citation statements)

References 6 publications

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“…Data were acquired at four values of E l , corresponding to V = [3,4,5,6] kV. In each case, the population of 210 Po alpha particle events was isolated using simple, robust software cuts on the signal size of S1, S2 and the time delay between them.…”

Section: Resultsmentioning

confidence: 99%

“…This interpretation can be compared against (1 − κ), where κ is the electron emission efficiency (expressed as a percent). The parameterizations κ = [1 + exp ( 5 3 (−E l + 3))] −1 and κ = [1 + exp(1.14 * (−E l + 3.41))] −1 were fit to the data from [4,18]. Assuming the measurements of [18] to be correct, it would appear that for E l < 7 kV/cm about half of the thermalized electrons are never emitted.…”

Section: Resultsmentioning

confidence: 99%

“…This technique can easily provide sensitivity to single electrons. It has been known for decades that the bulk of the electron emission from the liquid into the gas proceeds in a time t 1 ns, and that there also exists a field-dependent component of the emission with τ 0.1 ms [4]. A widely accepted interpretation is that this is due to thermalization of electrons at the interface [5].…”

Section: Introductionmentioning

confidence: 99%

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Two distinct components of the delayed single electron noise in liquid xenon emission detectors

Sørensen

Kamdin

2018

J. Inst.

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Single electron background signals with millisecond timescales are known to follow ionizing events in liquid/gas xenon emission detectors. Due to the long timescale, these signals can present a limiting background to the low-energy threshold of dark matter searches, and prevent discoveryclass searches for MeV scale hidden sector dark matter. A systematic study reveals a fast (τ1) and slow (τ2) component to the background. The fast component is compatible with electrons which were trapped at the liquid surface, and can be reduced by increasing the electric field. However, the slow component increases linearly with electric field. Hypotheses for the origin of the effect are discussed, and techniques for mitigation are suggested.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Two distinct components of the delayed single electron noise in liquid xenon emission detectors

Sørensen

Kamdin

2018

J. Inst.

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“…We consider a pad size of 3 × 3mm, similar to what was used in initial demonstrations of the pad readout technology [19], for a total of ∼10 5 channels per m 2 . With a maximum drift length of 50 cm, transverse diffusion is estimated to be 0.8 mm, based on 13 cm 2 /s at 1 kV/cm [21][22][23].…”

Section: Near Detector Technologies Studiedmentioning

confidence: 99%

Neutrino-electron elastic scattering for flux determination at the DUNE oscillation experiment

2020

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We study the feasibility of using neutrino-electron elastic scattering to measure the neutrino flux in the DUNE neutrino oscillation experiment. The neutrino-electron scattering cross section is precisely known, and the kinematics of the reaction allow determination of the incoming neutrino energy by precise measurement of the energy and angle of the recoiling electron. For several possible near detectors, we perform an analysis of their ability to measure neutrino flux in the presence of backgrounds and uncertainties. With realistic assumptions about detector masses, we find that a liquid argon detector, even with limitations due to angular resolution, is able to perform better than less dense detectors with more precise event-by-event neutrino energy measurements. We find that the absolute flux normalization uncertainty can be reduced from ∼8% to ∼2%, and the uncertainty on the flux shape can be reduced by ∼20-30%.

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“…Observations with the CLUSTER satellites near the plasmapause revealed low‐frequency (100–500 Hz) whistlers correlated with density fluctuations and high‐frequency (3–6 kHz) whistlers anti‐correlated with the density fluctuations [ Moullard et al , 2002]. In the laboratory, whistlers have been observed to be guided along magnetic [ Gushchin et al , 2005] and density [ Zaboronkova et al , 1992] ducts. The channeling of whistlers along density troughs, crests and gradients has been studied in recent numerical studies [ Streltsov et al , 2006].…”

Section: Introductionmentioning

confidence: 99%

Numerical study of mode conversion between lower hybrid and whistler waves on short‐scale density striations

Eliasson

Papadopoulos

2008

J. Geophys. Res.

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[1] We present a theoretical and numerical study of linear mode conversion of lower hybrid waves interacting with short-scale density striations in the Earth's ionosphere. The efficiency of the conversion process is investigated for different sets of parameters such as the angle of incidence, the wavelength of the lower hybrid wave, and the size of the striation. It is found that the most efficient whistler generation occurs at a critical angle of incidence where the whistler waves are driven resonantly along the density striations, and when the product of the striation width and the wave number of the lower hybrid wave is of the order unity. It is suggested that whistlers generated as a byproduct of upper hybrid F-region ionospheric heating can be observed on the ground and by satellites. The generated whistlers could be important for the precipitation of energetic electrons in the radiation belts.Citation: Eliasson, B., and K. Papadopoulos (2008), Numerical study of mode conversion between lower hybrid and whistler waves on short-scale density striations,

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Propagation of whistlers in a plasma with a magnetic field duct

Cited by 13 publications

References 6 publications

Two distinct components of the delayed single electron noise in liquid xenon emission detectors

Two distinct components of the delayed single electron noise in liquid xenon emission detectors

Neutrino-electron elastic scattering for flux determination at the DUNE oscillation experiment

Numerical study of mode conversion between lower hybrid and whistler waves on short‐scale density striations

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