Characterization of the Spontaneous Light Emission of the PMTs used in the Double Chooz Experiment
- Abe, Y.
- Abrahão, T.
- Almazan, H.
- Alt, C.
- Appel, S.
- Baussan, E.
- Bekman, I.
- Bergevin, M.
- Bezerra, T.
- Bezrukov, L.
- Blucher, E.
- Brugière, T.
- Buck, C.
- Busenitz, J.
- Cabrera, A.
- Calvo, E.
- Camilleri, L.
- Carr, R.
- Cerrada, M.
- Chauveau, E.
- Chimenti, P.
- Collin, A.
- Conover, E.
- Conrad, J.
- Crespo-Anadón, J.
- Crum, K.
- Cucoanes, A.
- Damon, E.
- Dawson, J.
- de Kerret, H.
- Dhooghe, J.
- Dietrich, D.
- Djurcic, Z.
- Anjos, J.
- Dracos, M.
- Etenko, A.
- Fallot, M.
- Felde, J.
- Fernandes, S.
- Fischer, V.
- Franco, D.
- Franke, M.
- Furuta, H.
- Gil-Botella, I.
- Giot, L.
- Göger-Neff, M.
- Gomez, H.
- Gonzalez, L.
- Goodenough, L.
- Goodman, M.
- Haag, N.
- Hara, T.
- Haser, J.
- Hellwig, D.
- Hofmann, M.
- Horton-Smith, G.
- Hourlier, A.
- Ishitsuka, M.
- Jiménez, S.
- Jochum, J.
- Jollet, C.
- Kaether, F.
- Kalousis, L.
- Kamyshkov, Y.
- Kaneda, M.
- Kaplan, D.
- Kawasaki, T.
- Kemp, E.
- Kryn, D.
- Kuze, M.
- Lachenmaier, T.
- Lane, C.
- Lasserre, T.
- Letourneau, A.
- Lhuillier, D.
- Lima, H.
- Lindner, M.
- López-Castaño, J.
- LoSecco, J.
- Lubsandorzhiev, B.
- Lucht, S.
- Maeda, J.
- Mariani, C.
- Maricic, J.
- Martino, J.
- Matsubara, T.
- Mention, G.
- Meregaglia, A.
- Miletic, T.
- Milincic, R.
- Minotti, A.
- Nagasaka, Y.
- Navas-Nicolás, D.
- Novella, P.
- Nunokawa, H.
- Oberauer, L.
- Obolensky, M.
- Onillon, A.
- Osborn, A.
- Palomares, C.
- Pepe, I.
- Perasso, S.
- Porta, A.
- Pronost, G.
- Reichenbacher, J.
- Reinhold, B.
- Röhling, M.
- Roncin, R.
- Rybolt, B.
- Sakamoto, Y.
- Santorelli, R.
- Schilithz, A.
- Schönert, S.
- Schoppmann, S.
- Shaevitz, M.
- Sharankova, R.
- Shrestha, D.
- Sibille, V.
- Sinev, V.
- Skorokhvatov, M.
- Smith, E.
- Soiron, M.
- Spitz, J.
- Stahl, A.
- Stancu, I.
- Stokes, L.
- Strait, M.
- Suekane, F.
- Sukhotin, S.
- Sumiyoshi, T.
- Sun, Y.
- Svoboda, R.
- Terao, K.
- Tonazzo, A.
- Thi, H.
- Valdiviesso, G.
- Vassilopoulos, N.
- Veyssiere, C.
- Vivier, M.
- von Feilitzsch, F.
- Wagner, S.
- Walsh, N.
- Watanabe, A.
- Wiebusch, C.
- Wurm, M.
- Yang, G.
- Yermia, F.
- Zimmer, V.
DOIAbstract
During the commissioning of the first of the two detectors of the Double Chooz experiment, an unexpected and dominant background caused by the emission of light inside the optical volume has been observed. A specific study of the ensemble of phenomena called "Light Noise" has been carried out in-situ, and in an external laboratory, in order to characterize the signals and to identify the possible processes underlying the effect. Some mechanisms of instrumental noise originating from the PMTs were identified and it has been found that the leading one arises from the light emission localized on the photomultiplier base and produced by the combined effect of heat and high voltage across the transparent epoxy resin covering the electric compone...
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