Abstract
The timing properties of a scintillation counter consisting of an NE111 plastic scintillator coupled to a three-stage R1294Z MCP photomultiplier have been studied. The time jitter of the R1294Z photomultiplier, its photoelectron yield for the NE111 scintillator and the time resolution for 511 keV annihilation quanta from a 68Ge 68Ga source were measured. This shows that at present the application of MCP photomultipliers in scintillation counters for subnanosecond timing is limited by the low photoelectron yield. A much longer life for the three-stage R1294Z photomultiplier was observed than that of two-stage photomultipliers. An application of the R1294Z photomultiplier for studying light pulse shapes from scintillators by means of the single photon method was tested.
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