Author/Authors :
Harris، نويسنده , , F.A. and Kennedy، نويسنده , , J.W. and Liu، نويسنده , , Q. and Nguyen، نويسنده , , L. and Olsen، نويسنده , , S.L. and Rosen، نويسنده , , M. and Shen، نويسنده , , C.P. and Varner، نويسنده , , G.S. and Heng، نويسنده , , Y.K. and Sun، نويسنده , , Z.J. and Zhu، نويسنده , , K.J. and An، نويسنده , , Q. and Feng، نويسنده , , C.Q. and Liu، نويسنده , , S.B.، نويسنده ,
Abstract :
A Time-of-Flight (TOF) monitoring system has been developed for BES3. The light source is a 442–443 nm laser diode, which is stable and provides a pulse width as narrow as 50 ps and a peak power as large as 2.6 W. Two optical-fiber bundles with a total of 512 optical fibers, including spares, are used to distribute the light pulses to the TOF counters. The design, operation, and performance of the system are described.
