Author/Authors :
Ahmad، نويسنده , , S. E. Bonner، نويسنده , , B.E. and Llope، نويسنده , , W.J. and Mutchler، نويسنده , , G.S. and Platner، نويسنده , , E. and Themann، نويسنده , , H. and Wright، نويسنده , , M. and Yepes، نويسنده , , A. M. Dyugaev and P. D. Grigoriev ، نويسنده , , V.A. and Kaplin، نويسنده , , V.A. and Karakash، نويسنده , , A.I. and Maklyaev، نويسنده , , E.F. and Shalnov، نويسنده , , A.V. and Strikhanov، نويسنده , , M.A. and Blinnikov، نويسنده , , Yu.، نويسنده ,
Abstract :
We report the results of tests of prototype proximity mesh dynode photomultiplier tubes (FEU-527) manufactured by MELS. These tubes were compared with similar Hamamatsu models R5505/R3432-01 to determine their suitability for use in the Time-of-Flight (TOF) subsystem of the Solenoidal Tracker at RHIC (STAR) project. Gain and timing characteristics of these tubes were measured both with and without a magnetic field. The results show that some of the Russian prototype tubes meet the requirements for the STAR TOF subsystem.