An optimal energy estimator to reduce correlated noise for the EXO-200 light readout

Publication Type
Journal Article
Year of Publication
2016
Authors
Davis, C. G.
Hall, C.
Albert, J. B.
Barbeau, P. S.
Beck, D.
Belov, V.
Breidenbach, M.
Brunner, T.
Burenkov, A.
Cao, G. F.
Cen, W. R.
Chambers, C.
Cleveland, B.
Coon, M.
Craycraft, A.
Daniels, T.
Danilov, M.
Daugherty, S. J.
Davis, J.
Delaquis, S.
Der Mesrobian-Kabakian, A.
DeVoe, R.
Didberidze, T.
Dilling, J.
Dolgolenko, A.
Dolinski, M. J.
Dunford, M.
Fairbank, W.
Farine, J.
Feldmeier, W.
Feyzbakhsh, S.
Fierlinger, P.
Fudenberg, D.
Gornea, R.
Graham, K.
Gratta, G.
Hughes, M.
Jewell, M. J.
Johnson, A.
Johnson, T. N.
Johnston, S.
Karelin, A.
Kaufman, L. J.
Killick, R.
Koffas, T.
Kravitz, S.
Krucken, R.
Kuchenkov, A.
Kumar, K. S.
Leonard, D. S.
Licciardi, C.
Lin, Y. H.
Ling, J.
MacLellan, R.
Marino, M. G.
Mong, B.
Moore, D.
Njoya, O.
Nelson, R.
Odian, A.
Ostrovskiy, I.
Piepke, A.
Pocar, A.
Prescott, C. Y.
Retiere, F.
Rowson, P. C.
Russell, J. J.
Schubert, A.
Sinclair, D.
Smith, E.
Stekhanov, V.
Tarka, M.
Tolba, T.
Tsang, R.
Twelker, K.
Vuilleumier, J. L.
Waite, A.
Walton, J.
Walton, T.
Weber, M.
Wen, L. J.
Wichoski, U.
Wood, J.
Yang, L.
Yen, Y. R.
Zeldovich, O. Y.
Name of Publication
Journal of Instrumentation
Volume
11
Pagination
20
Date Published
Jul
Type of Article
Article
Short Title
An optimal energy estimator to reduce correlated noise for the EXO-200 light readout
Accession Number
WOS:000387763000006
ISBN Number
1748-0221
DOI
10.1088/1748-0221/11/07/p07015
Keywords
Analysis and statistical methods, Data processing methods, decay detectors, Double-beta, double-phase), Instruments & Instrumentation, Noble liquid detectors (scintillation, ionization,, pair creation energy
Abstract

The energy resolution of the EXO-200 detector is limited by electronics noise in the measurement of the scintillation response. Here we present a new technique to extract optimal scintillation energy measurements for signals split across multiple channels in the presence of correlated noise. The implementation of these techniques improves the energy resolution of the detector at the neutrinoless double beta decay Q-value from [1.9641 +/- 0.0039]% to [1.5820 +/- 0.0044]%.