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arxiv: 1408.1823 · v1 · pith:UKSAL2IVnew · submitted 2014-08-08 · ⚛️ physics.ins-det · hep-ex

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

D.Yu. Akimov , V.V. Afanasyev , I.S. Alexandrov , V.A. Belov , A.I. Bolozdynya , A.A. Burenkov , Yu.V. Efremenko , D.A. Egorov
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A.V. Etenko M.A. Gulin S.V. Ivakhin V.A. Kaplin A.K. Karelin A.V. Khromov M.A. Kirsanov S.G. Klimanov A.S. Kobyakin A.M. Konovalov A.G. Kovalenko A.V. Kuchenkov A.V. Kumpan Yu.A. Melikyan R.I. Nikolaev D.G. Rudik V.V. Sosnovtsev V.N. Stekhanov
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classification ⚛️ physics.ins-det hep-ex
keywords energyionizationyieldbelowelectronexperimentalliquidrange
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We present the results of the first experimental study of ionization yield of electron recoils with energies below 100 keV produced in liquid xenon by the isotopes: 37Ar, 83mKr, 241Am, 129Xe, 131Xe. It is confirmed by a direct measurement with 37Ar isotope (2.82 keV) that the ionization yield is growing up with the energy decrease in the energy range below ~ 10 keV accordingly to the NEST predictions. Decay time of scintillation at 2.82 keV is measured to be 25 +/- 3 ns at the electric field of 3.75 kV/cm.

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