Author/Authors :
Lang، نويسنده , , K. and Day، نويسنده , , J. and Eilerts، نويسنده , , S. and Fuqua، نويسنده , , S. and Guillen، نويسنده , , A. and Kordosky، نويسنده , , M. and Lang، نويسنده , , M. and Liu، نويسنده , , J. and Opaska، نويسنده , , W. and Proga، نويسنده , , M. and Vahle، نويسنده , , P. and Winbow، نويسنده , , A. and Drake، نويسنده , , G. and Thomas، نويسنده , , J. and Andreopoulos، نويسنده , , C. and Saoulidou، نويسنده , , N. and Stamoulis، نويسنده , , P. an، نويسنده ,
Abstract :
We are reporting results of the characterization of over 1600 multi-anode R5900-00-M16 photomultipliers manufactured by Hamamatsu Photonics K.K., and installed in the MINOS Far detector. We have conducted extensive tests of the uniformity of gain and collection efficiency of individual anodes, the cross-talk among all 16 channels, the dark noise, and the linearity of response. In our studies we used a blue light-emitting diode to illuminate phototubes through 1.2 mm diameter optical fibers. In this paper, we present summaries of the main characteristics of the tested photomultipliers.
Keywords :
Photomultipliers , Multi-anode photomultipliers , Scintillator readout , Fiber readout , Neutrino mass , Neutrino oscillations
