Low cross-talk fiber readout of scintillating detectors

After evaluating and optimizing several multichannel photomultiplier tubes and small low-cost side-window photomultiplier tubes, the authors have devised two methods which, depending on the particular application, are viable readout systems for a small to moderate number of fibers. The new 16-channel Hamamatsu R4760 photomultiplier tube offers, when timing information is utilized, the lowest near-neighbour cross-talk (<0.05%). The 931B side-window photomultiplier, which is 30 mm in diameter, is also a good choice for moderate-size multifiber readout when no cross-talk can be tolerated