The measurements of 2200 ETL9351 type photomultipliers for the Borexino   experiment with the photomultiplier testing facility at LNGS
  The results of tests of more than 2200 ETL9351 type PMTs for the Borexino detector with the PMT test facility are presented. The PMTs characteristics relevant for the proper detector operation and modeling are discussed in detail. 
A.Ianni, P.Lombardi, G.Ranucci, and O.Smirnov