Author/Authors :
Suzuki، نويسنده , , Soh Yamagata and Yamauchi، نويسنده , , Masanori and Nakao، نويسنده , , Mikihiko and Itoh، نويسنده , , Ryosuke and Fujii، نويسنده , , Hirofumi، نويسنده ,
Abstract :
We built a data acquisition system for the BELLE experiment. The system was designed to cope with the average trigger rate up to 500 Hz at the typical event size of 30 kB. This system has five components: (1) the readout sequence controller, (2) the FASTBUS-TDC readout systems using charge-to-time conversion, (3) the barrel shifter event builder, (4) the parallel online computing farm, and (5) the data transfer system to the mass storage. This system has been in operation for physics data taking since June 1999 without serious problems.
