Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Astrophysics



+44 (0)20 7594 7552t.sumner




1108Blackett LaboratorySouth Kensington Campus






BibTex format

author = {Edwards, B and Araujo, HM and Chepel, V and Cline, D and Durkin, T and Gao, J and Ghag, C and Korolkova, EV and Lebedenko, VN and Lindote, A and Lope, MI and Luscher, R and Murphy, ASJ and Neves, F and Ooi, W and da, Cunha JP and Preece, RM and Salinas, G and Silva, C and Solovov, VN and Smith, NJT and Smith, PF and Sumner, TJ and Thorne, C and Walker, RJ and Wang, H and White, JT and Wolfs, FLH},
doi = {10.1016/j.astropartphys.2008.06.006},
journal = {Astroparticle Physics},
pages = {54--57},
title = {Measurement of single electron emission in two-phase xenon},
url = {},
volume = {30},
year = {2008}

RIS format (EndNote, RefMan)

AB - 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.
AU - Edwards,B
AU - Araujo,HM
AU - Chepel,V
AU - Cline,D
AU - Durkin,T
AU - Gao,J
AU - Ghag,C
AU - Korolkova,EV
AU - Lebedenko,VN
AU - Lindote,A
AU - Lope,MI
AU - Luscher,R
AU - Murphy,ASJ
AU - Neves,F
AU - Ooi,W
AU - da,Cunha JP
AU - Preece,RM
AU - Salinas,G
AU - Silva,C
AU - Solovov,VN
AU - Smith,NJT
AU - Smith,PF
AU - Sumner,TJ
AU - Thorne,C
AU - Walker,RJ
AU - Wang,H
AU - White,JT
AU - Wolfs,FLH
DO - 10.1016/j.astropartphys.2008.06.006
EP - 57
PY - 2008///
SN - 1873-2852
SP - 54
TI - Measurement of single electron emission in two-phase xenon
T2 - Astroparticle Physics
UR -
UR -
VL - 30
ER -