Edwards, B;
Araujo, HM;
Chepel, V;
Cline, D;
Durkin, T;
Gao, J;
Ghag, C;
... Wolfs, FLH; + view all
(2008)
Measurement of single electron emission in two-phase xenon.
Astroparticle Physics
, 30
(2)
pp. 54-57.
10.1016/j.astropartphys.2008.06.006.
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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.
| Type: | Article |
|---|---|
| Title: | Measurement of single electron emission in two-phase xenon |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.astropartphys.2008.06.006 |
| Publisher version: | https://doi.org/10.1016/j.astropartphys.2008.06.00... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | ZEPLIN-II, Liquid xenon, Electroluminescence, Radiation detectors |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1352149 |
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