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Graugés, Eugeni; Comerma, Albert; Garrido, Lluís; Gascón, David; Garra, Jordi; Graciani, Ricardo; Picatoste, Eduard; Aguiló, Ernest; Vilasís-Cardona, Xavier; Gaspar de Valenzuela, Álvaro; Bohner, Gerard; Bonnefoy, Romeo; Borras, David; Cornat, Remi; Michel Crouau; Deschamps, Olivier; Jacquet, Philippe; Lecoq, Jacques; Monteil, Stephane; Perret, Pascal; Reinmuth, Guy
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 03/2007, Letnik: 572, Številka: 1Journal Article
The final choice as the photomultiplier solution for both the LHCb Pre-Shower (PS) and the Scintillator Pad Detector (SPD) are the R7600-00-M64MOD Hamamatsu 64 channel photomultiplier tubes (MaPMT). A total of 220 units have been purchased to the manufacturer and around 100 units, the part corresponding to the SPD, have been characterized at the photon detection test bench facility in the University of Barcelona (UB) high energy physics group laboratory. There, the crucial features of the tubes such as linearity, gain, channel cross-talk and anode uniformity of response have been measured to ensure the compliance with the specifications agreed with the manufacturer.
