Browsing by Author "Garcia, J."

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    The Double Chooz antineutrino detectors
    de Kerret, H.; Abe, Y.; Aberle, C.; Abrahão, T.; Ahijado, J. M.; Akiri, T.; Alarcón, J. M.; Alba, J.; Almazan, H.; dos Anjos, J. C.; Appel, S.; Ardellier, F.; Barabanov, I.; Barriere, J. C.; Baussan, E.; Baxter, A.; Bekman, I.; Bergevin, M.; Bernstein, A.; Bertoli, W.; Bezerra, T. J. C.; Bezrukov, L.; Blanco, C.; Bleurvacq, N.; Blucher, E.; Bonet, H.; Bongrand, M.; Bowden, N. S.; Brugière, T.; Buck, C.; Avanzini, M. B.; Busenitz, J.; Cabrera, A.; Caden, E.; Calvo, E.; Camilleri, L.; Carr, R.; Cazaux, S.; Cela, J. M.; Cerrada, M.; Chang, P. J.; Charon, P.; Chauveau, E.; Chimenti, P.; Classen, T.; Collin, A. P.; Conover, E.; Conrad, J. M.; Cormon, S.; Corpace, O.; Courty, B.; Crespo-Anadón, J. I.; Cribier, M.; Crum, K.; Cuadrado, S.; Cucoanes, A.; D’Agostino, M.; Damon, E.; Dawson, J. V.; Dazeley, S.; Dierckxsens, M.; Dietrich, D.; Djurcic, Z.; Dorigo, F.; Dracos, M.; Durand, V.; Efremeko, Y.; Elnimr, M.; Etenko, A.; Falk, E.; Fallot, M.; Fechner, M.; Felde, J.; Fernandes, S. M.; Fernández-Bedoya, C.; Francia, D.; Franco, D.; Fischer, V.; Franke, A. J.; Franke, M.; Furuta, H.; Garcia, F.; Garcia, J.; Gil-Botella, I.; Giot, L.; Givaudan, A.; Göger-Neff, M.; Gomez, H.; Gonzalez, L. F. G.; Goodenough, L.; Goodman, M. C.; Goon, J.; Gramlich, B.; Greiner, D.; Guertin, A.; Guillon, B.; Habib, S. M.; Haddad, Y.; Hara, T.; Hartmann, F. X.; Hartnell, J.; Haser, J.; Hatzikoutelis, A.; Hellwig, D.; Hervé, S.; Hofacker, R.; Horton-Smith, G.; Hourlier, A.; Ishitsuka, M.; Jänner, K.; Jiménez, S.; Jochum, J.; Jollet, C.; Kaether, F.; Kale, K.; Kalousis, L.; Kamyshkov, Y.; Kaneda, M.; Kaplan, D. M.; Karakac, M.; Kawasaki, T.; Kemp, E.; Kibe, Y.; Kirchner, T.; Konno, T.; Kryn, D.; Kutter, T.; Kuze, M.; Lachenmaier, T.; Lane, C. E.; Langbrandtner, C.; Lasserre, T.; Lastoria, C.; Latron, L.; Leonardo, C.; Letourneau, A.; Lhuillier, D.; Lima, H. P.; Lindner, M.; López-Castaño, J. M.; LoSecco, J. M.; Lubsandorzhiev, B.; Lucht, S.; Maeda, J.; Maesano, C. N.; Mariani, Camillo; Maricic, J.; Marie, F.; Martinez, J. J.; Martino, J.; Matsubara, T.; McKee, D.; Meigner, F.; Mention, G.; Meregaglia, A.; Meyer, J. P.; Miletic, T.; Milincic, R.; Millot, J. F.; Minotti, A.; Mirones, V.; Miyata, H.; Mueller, Th. A.; Nagasaka, Y.; Nakajima, K.; Navas-Nicolás, D.; Nikitenko, Y.; Novella, P.; Oberauer, L.; Obolensky, M.; Onillon, A.; Oralbaev, A.; Ostrovskiy, I.; Palomares, C.; Peeters, S. J. M.; Pepe, I. M.; Perasso, S.; Perrin, P.; Pfahler, P.; Porta, A.; Pronost, G.; Puras, J. C.; Quéval, R.; Ramirez, J. L.; Reichenbacher, J.; Reinhold, B.; Reissfelder, M.; Remoto, A.; Reyna, D.; Rodriguez, I.; Röhling, M.; Roncin, R.; Rudolf, N.; Rybolt, B.; Sakamoto, Y.; Santorelli, R.; Sato, F.; Schwan, U.; Schönert, S.; Schoppmann, S.; Scola, L.; Settimo, M.; Shaevitz, M. A.; Sharankova, R.; Sibille, V.; Sida, J.-L.; Sinev, V.; Shrestha, D.; Skorokhvatov, M.; Soldin, P.; Spitz, J.; Stahl, A.; Stancu, I.; Starzynski, P.; Stock, M. R.; Stokes, L. F. F.; Strait, M.; Stüken, A.; Suekane, F.; Sukhotin, S.; Sumiyoshi, T.; Sun, Y.; Sun, Z.; Svoboda, R.; Tabata, H.; Tamura, N.; Terao, K.; Tonazzo, A.; Toral, F.; Toups, M.; Thi, H. T.; Valdivia, F.; Valdiviesso, G.; Vassilopoulos, N.; Verdugo, A.; Veyssiere, C.; Viaud, B.; Vignaud, D.; Vivier, M.; Wagner, S.; Wiebusch, C.; White, B.; Winslow, L.; Worcester, M.; Wurm, M.; Wurtz, J.; Yang, G.; Yáñez, J.; Yermia, F.; Zbiri, K. (2022-09-08)
    This article describes the setup and performance of the near and far detectors in the Double Chooz experiment. The electron antineutrinos of the Chooz nuclear power plant were measured in two identically designed detectors with different average baselines of about 400 m and 1050 m from the two reactor cores. Over many years of data taking the neutrino signals were extracted from interactions in the detectors with the goal of measuring a fundamental parameter in the context of neutrino oscillation, the mixing angle θ13. The central part of the Double Chooz detectors was a main detector comprising four cylindrical volumes filled with organic liquids. From the inside towards the outside there were volumes containing gadolinium-loaded scintillator, gadolinium-free scintillator, a buffer oil and, optically separated, another liquid scintillator acting as veto system. Above this main detector an additional outer veto system using plastic scintillator strips was installed. The technologies developed in Double Chooz were inspiration for several other antineutrino detectors in the field. The detector design allowed implementation of efficient background rejection techniques including use of pulse shape information provided by the data acquisition system. The Double Chooz detectors featured remarkable stability, in particular for the detected photons, as well as high radiopurity of the detector components.
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    Nitrogen K-Shell Photoabsorption
    Garcia, J.; Kallman, T. R.; Witthoeft, M.; Behar, E.; Mendoza, C.; Palmeri, P.; Quinet, P.; Bautista, M. A.; Klapisch, M. (IOP PUBLISHING LTD, 2009-12)
    Reliable atomic data have been computed for the spectral modeling of the nitrogen K lines, which may lead to useful astrophysical diagnostics. Data sets comprise valence and K-vacancy level energies, wavelengths, Einstein A-coefficients, radiative and Auger widths, and K-edge photoionization cross sections. An important issue is the lack of measurements that are usually employed to fine-tune calculations so as to attain spectroscopic accuracy. In order to estimate data quality, several atomic structure codes are used and extensive comparisons with previous theoretical data have been carried out. In the calculation of K photoabsorption with the Breit-Pauli R-matrix method, both radiation and Auger dampings, which cause the smearing of the K edge, are taken into account. This work is part of a wider project to compute atomic data in the X-ray regime to be included in the database of the popular XSTAR modeling code.
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    Radiative and Auger Decay Data for Modeling Nickel K Lines
    Palmeri, P.; Quinet, P.; Mendoza, C.; Bautista, M. A.; Garcia, J.; Witthoeft, M. C.; Kallman, T. R. (IOP PUBLISHING LTD, 2008-12)
    Radiative and Auger decay data have been calculated for modeling the K lines in ions of the nickel isonuclear sequence, from Ni(+) up to Ni(27+). Level energies, transition wavelengths, radiative transition probabilities, and radiative and Auger widths have been determined using Cowan's Hartree-Fock with relativistic corrections (HFR) method. Auger widths for the third-row ions (Ni(+)-Ni(10+)) have been computed using single-configuration average (SCA) compact formulae. Results are compared with data sets computed with the AUTOSTRUCTURE and MCDF atomic structure codes and with available experimental and theoretical values, mainly in highly ionized ions and in the solid state.