Imperial College London

ProfessorTimothySumner

Faculty of Natural SciencesDepartment of Physics

Professor of Experimental Astrophysics
 
 
 
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Contact

 

+44 (0)20 7594 7552t.sumner

 
 
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Location

 

1108Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Akerib:2017:11/P11022,
author = {Akerib, DS and Alsum, S and Araujo, HM and Bai, X and Bailey, AJ and Balajthy, J and Beltrame, P and Bernard, EP and Bernstein, A and Biesiadzinski, TP and Boulton, EM and Bras, P and Byram, D and Cahn, SB and Carmona-Benitez, MC and Chan, C and Currie, A and Cutter, JE and Davison, TJR and Dobi, A and Druszkiewicz, E and Edwards, BN and Fallon, SR and Fan, A and Fiorucci, S and Gaitskell, RJ and Genovesi, J and Ghag, C and Gilchriese, MGD and Hall, CR and Hanhardt, M and Haselschwardt, SJ and Hertel, SA and Hogan, DP and Horn, M and Huang, DQ and Ignarra, CM and Jacobsen, RG and Ji, W and Kamdin, K and Kazkaz, K and Khaitan, D and Knoche, R and Larsen, NA and Lenardo, BG and Lesko, KT and Lindote, A and Lopes, MI and Manalaysay, A and Mannino, RL and Marzioni, MF and McKinsey, DN and Mei, D-M and Mock, J and Moongweluwan, M and Morad, JA and Murphy, ASJ and Nehrkorn, C and Nelson, HN and Neves, F and O'Sullivan, K and Oliver-Mallory, KC and Palladino, KJ and Pease, EK and Rhyne, C and},
doi = {11/P11022},
journal = {Journal of Instrumentation},
title = {3D modeling of electric fields in the LUX detector},
url = {http://dx.doi.org/10.1088/1748-0221/12/11/P11022},
volume = {12},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - This work details the development of a three-dimensional (3D) electric field model for the LUX detector. The detector took data to search for weakly interacting massive particles (WIMPs) during two periods. After the first period completed, a time-varying non-uniform negative charge developed in the polytetrafluoroethylene (PTFE) panels that define the radial boundary of the detector's active volume. This caused electric field variations in the detector in time, depth and azimuth, generating an electrostatic radially-inward force on electrons on their way upward to the liquid surface. To map this behavior, 3D electric field maps of the detector's active volume were generated on a monthly basis. This was done by fitting a model built in COMSOL Multiphysics to the uniformly distributed calibration data that were collected on a regular basis. The modeled average PTFE charge density increased over the course of the exposure from -3.6 to −5.5 μC/m2. From our studies, we deduce that the electric field magnitude varied locally while the mean value of the field of ~200 V/cm remained constant throughout the exposure. As a result of this work the varying electric fields and their impact on event reconstruction and discrimination were successfully modeled.
AU - Akerib,DS
AU - Alsum,S
AU - Araujo,HM
AU - Bai,X
AU - Bailey,AJ
AU - Balajthy,J
AU - Beltrame,P
AU - Bernard,EP
AU - Bernstein,A
AU - Biesiadzinski,TP
AU - Boulton,EM
AU - Bras,P
AU - Byram,D
AU - Cahn,SB
AU - Carmona-Benitez,MC
AU - Chan,C
AU - Currie,A
AU - Cutter,JE
AU - Davison,TJR
AU - Dobi,A
AU - Druszkiewicz,E
AU - Edwards,BN
AU - Fallon,SR
AU - Fan,A
AU - Fiorucci,S
AU - Gaitskell,RJ
AU - Genovesi,J
AU - Ghag,C
AU - Gilchriese,MGD
AU - Hall,CR
AU - Hanhardt,M
AU - Haselschwardt,SJ
AU - Hertel,SA
AU - Hogan,DP
AU - Horn,M
AU - Huang,DQ
AU - Ignarra,CM
AU - Jacobsen,RG
AU - Ji,W
AU - Kamdin,K
AU - Kazkaz,K
AU - Khaitan,D
AU - Knoche,R
AU - Larsen,NA
AU - Lenardo,BG
AU - Lesko,KT
AU - Lindote,A
AU - Lopes,MI
AU - Manalaysay,A
AU - Mannino,RL
AU - Marzioni,MF
AU - McKinsey,DN
AU - Mei,D-M
AU - Mock,J
AU - Moongweluwan,M
AU - Morad,JA
AU - Murphy,ASJ
AU - Nehrkorn,C
AU - Nelson,HN
AU - Neves,F
AU - O'Sullivan,K
AU - Oliver-Mallory,KC
AU - Palladino,KJ
AU - Pease,EK
AU - Rhyne,C
AU - Shaw,S
AU - Shutt,TA
AU - Silva,C
AU - Solmaz,M
AU - Solovov,VN
AU - Sorensen,P
AU - Sumner,TJ
AU - Szydagis,M
AU - Taylor,DJ
AU - Taylor,WC
AU - Tennyson,BP
AU - Terman,PA
AU - Tiedt,DR
AU - To,WH
AU - Tripathi,M
AU - Tvrznikova,L
AU - Uvarov,S
AU - Velan,V
AU - Verbus,JR
AU - Webb,RC
AU - White,JT
AU - Whitis,TJ
AU - Witherell,MS
AU - Wolfs,FLH
AU - Xu,J
AU - Yazdani,K
AU - Young,SK
AU - Zhang,C
DO - 11/P11022
PY - 2017///
SN - 1748-0221
TI - 3D modeling of electric fields in the LUX detector
T2 - Journal of Instrumentation
UR - http://dx.doi.org/10.1088/1748-0221/12/11/P11022
UR - http://hdl.handle.net/10044/1/55178
VL - 12
ER -