The BELLE event building system

Author

Suzuki, S.Y. ; Matsuo, H. ; Fujii, H. ; Sasaki, O. ; Igarashi, Y. ; Nagasaka, Y. ; Watase, Y. ; Sakamoto, H. ; Tairadate, M.

Author_Institution

Nat. High Energy Accel. Res. Organ., Ibaraki, Japan

fYear

1999

fDate

1999

Firstpage

24

Lastpage

27

Abstract

We have built a barrel-shifter type event builder for the Belle experiment and operated it successfully. This is the first experience applying the barrel-shifter type event builder to the real experiment. The type of our event builder is global-traffic control-based. The Belle event builder is required to be scalable up to 11 source nodes (detector readout subsystems) and six destination nodes (online computer farm subsystems). The average event size is estimated to be 30 kbyte and the maximum trigger rate is 500 Hz. This event builder has been operated with full detectors since Dec. 1998. We have shown that the barrel-shifter type event builder is applicable for this size of experiment

Keywords

data acquisition; high energy physics instrumentation computing; Belle experiment; barrel-shifter type event builder; destination nodes; detector readout; event size; global-traffic control; maximum trigger rate; Colliding beam devices; Control systems; Data acquisition; Data communication; Detectors; Discrete event simulation; Electrochemical machining; Event detection; Optical transmitters; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 1999. Santa Fe 1999. 11th IEEE NPSS

Conference_Location

Sante Fe, NM

Print_ISBN

0-7803-5463-X

Type

conf

DOI

10.1109/RTCON.1999.842556

Filename

842556