Experimental study of ionization yield of liquid xenon for electron recoils in the energy range 2.8–80 keV

Akimov, D.; Afanasyev, V. V.; Alexandrov, I. S.; Belov, V.; Bolozdynya, A.; Burenkov, A.; Efremenko, Y. V.; Egorov, Dmitrii; Etenko, A.; Gulin, M. A.; Ivakhin, S. V.; Kaplin, V.; Karelin, A.; Хромов, А. В.; Kirsanov, M. A.; Klimanov, S. G.; Kobyakin, A. S.; Konovalov, A. M.; Kovalenko, A. G.; Kuchenkov, A.; Kumpan, A.; Melikyan, Y.; Nikolaev, R. I.; Rudik, D.; Sosnovtsev, V.; Stekhanov, V.

doi:10.1088/1748-0221/9/11/p11014

Cited by 18 publications

(10 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Depending on the inner atomic shell from which the electron is captured, 2.82 keV, 0.27 keV and 0.0175 keV X-rays and Auger electrons are released (K-, L-, and M-shell, respectively, see Table 1 for the corresponding branching ratios). These offer mono-energetic lines with uniformly distributed events in the TPC that can be used for calibrations down to low ER energies [20][21][22].…”

Section: The 37 Ar Calibration Sourcementioning

confidence: 99%

The first dual-phase xenon TPC equipped with silicon photomultipliers and characterisation with $$^{37}\hbox {Ar}$$

et al. 2020

View full text Add to dashboard Cite

For the first time, a small dual-phase (liquid/gas) xenon time projection chamber was equipped with a top array of silicon photomultipliers for light and charge readout. Here we describe the instrument in detail, as well as the data processing and the event position reconstruction algorithms. We obtain a spatial resolution of $$\sim 1.5\,\text {mm}$$∼1.5mm in the horizontal plane. To characterise the detector performance, we show calibration data with internal $$^{83\text {m}}\hbox {Kr}$$83mKr and $$^{37}\hbox {Ar}$$37Ar sources, and we detail the production of the latter as well as its introduction into the system. We finally compare the observed light and charge yields down to electronic recoil energies of $$2.82\,\text {keV}$$2.82keV to predictions based on NEST v2.0.

show abstract

Section: The 37 Ar Calibration Sourcementioning

confidence: 99%

The first dual-phase xenon TPC equipped with silicon photomultipliers and characterisation with $$^{37}\hbox {Ar}$$

et al. 2020

View full text Add to dashboard Cite

show abstract

“…To provide a source of low-energy, mono-energetic signals in our detector for the EEE studies, 37 Ar gas was injected directly into the xenon circulation loop. This technique has been used previously to calibrate both xenon [37,38] and argon [39] detectors. The source decays via electron capture, with captures from either the L-shell or K-shell depositing a total of 0.27 keV or 2.8 keV, respectively, via a cascade of X-rays and/or Auger electrons.…”

Section: Apparatus and Measurementsmentioning

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

“…Particle interactions in the active region of a LXe TPC generate both a scintillation (S1) and an ionization (S2) signal, the ratio of which can be used to identify events as ERs or NRs. The S1 and S2 response of LXe TPCs to 37 Ar decay, in particular the 2.82 keV K-shell feature, has been observed and characterized both in small surface installations [8][9][10] and in large underground installations (including LUX [11,12] and XENON1T [4]). The Noble Element Simulation Technique (NEST) [13,14] is a response model which well-describes S1 and S2 production for low-energy ER sources [15,16] including 37 Ar [10,17].…”

Section: Experimental Signature Of 37 Ar In Lxe Tpcsmentioning

confidence: 99%

Cosmogenic production of $^{37}$Ar in the context of the LUX-ZEPLIN experiment

Aalbers,

Akerib,

Musalhi

et al. 2022

Preprint

View full text Add to dashboard Cite

Experimental study of ionization yield of liquid xenon for electron recoils in the energy range 2.8–80 keV

Cited by 18 publications

References 38 publications

The first dual-phase xenon TPC equipped with silicon photomultipliers and characterisation with $$^{37}\hbox {Ar}$$

The first dual-phase xenon TPC equipped with silicon photomultipliers and characterisation with $$^{37}\hbox {Ar}$$

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

Cosmogenic production of $^{37}$Ar in the context of the LUX-ZEPLIN experiment

Contact Info

Product

Resources

About