Author/Authors :
Denisov، نويسنده , , S and Dzierba، نويسنده , , A and Heinz، نويسنده , , R and Klimenko، نويسنده , , A and Samoylenko، نويسنده , , V and Scott، نويسنده , , E and Shchukin، نويسنده , , A and Smith، نويسنده , , P and Steffen، نويسنده , , C and Teige، نويسنده , , S، نويسنده ,
Abstract :
The proposed Hall D detector at Jefferson Lab will have a time-of-flight detector composed of long and narrow scintillator bars. We have evaluated the time resolution of two bar prototypes in particle beams at the Institute for High Energy Physics in Protvino, Russia. The bars are 2.0 m long and have square cross-sections of size 2.5 and 5.0 cm2. In this paper, we present results on how the time resolution of each of these bars depends on the entry position of the beam into the scintillator, on the material used for scintillator wrapping and on the phototube used for the readout.
