Title of article
Measurement of single electron emission in two-phase xenon
Author/Authors
Edwards، نويسنده , , B. and Araْjo، نويسنده , , H.M. and Chepel، نويسنده , , V. and Cline، نويسنده , , D. and Durkin، نويسنده , , T. and Gao، نويسنده , , J. and Ghag، نويسنده , , C. and Korolkova، نويسنده , , E.V. and Lebedenko، نويسنده , , V.N. and Lindote، نويسنده , , A. and Lopes، نويسنده , , M.I. and Lüscher، نويسنده , , R. and Murphy، نويسنده , , A.St.J. and Neves، نويسنده , , F. and Ooi، نويسنده , , W. and da Cunha، نويسنده , , J. Pinto and Preece، نويسنده , , R.M. and Salinas، نويسنده , , G. and Silva، نويسنده , , C. and Solovov، نويسنده , , V.N. and Smith، نويسنده , , N.J.T and Smith، نويسنده , , P.F. and Sumner، نويسنده , , T.J. and Thorne، نويسنده , , C. and Walker، نويسنده , , R.J. and Wang، نويسنده , , H. and White، نويسنده , , J.T. and Wolfs، نويسنده , , F.L.H.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
4
From page
54
To page
57
Abstract
We present the first measurements of the electroluminescence response to the emission of single electrons in a two-phase noble gas detector. Single ionization electrons generated in liquid xenon are detected in a thin gas layer during the 31-day background run of the ZEPLIN-II experiment, a two-phase xenon detector for WIMP dark matter searches. Both the pressure dependence and magnitude of the single electron response are in agreement with previous measurements of electroluminescence yield in xenon. We discuss different photoionization processes as possible cause for the sample of single electrons studied in this work. This observation may have implications for the design and operation of future large-scale two-phase systems.
Keywords
Radiation detectors , ZEPLIN-II , 78.60.Fi , 95.35.+d , 29.40.Mc , electroluminescence , 61.25.Bi , Liquid xenon
Journal title
Astroparticle Physics
Serial Year
2008
Journal title
Astroparticle Physics
Record number
1329754
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