Online data processing and analyzing in BESIII DAQ

Author

Li, Fei ; Zhu, Kejun ; Chen, LiPing ; Chen, Mali ; Ji, Xiaolu

Author_Institution

Inst. of High Energy Phys., Chinese Acad. of Sci., Beijing, China

fYear

2009

fDate

10-15 May 2009

Firstpage

458

Lastpage

460

Abstract

The BESIII (Beijing Spectrometer) is a high energy physics experiment designed to exploit the full physics potential provided by the BEPCII (Beijing Electron Positron Collider). The BESIII DAQ (data acquisition) system employs advanced computer and network technologies and multi-level parallel data collecting/processing schemes. It has a capability of 50 MBytes/s for the online farm processing and 40 MBytes/s for the tape-recording after the event filter. The raw data must be analyzed farther at online for real time monitoring the detector and data taken status. The paper introduces the design and implementation of online data processing in BESIII DAQ. The type and method of data analyzing are mainly described. And the software implementation results also are presented.

Keywords

computerised monitoring; data acquisition; data analysis; high energy physics instrumentation computing; particle accelerators; spectroscopy computing; BEPCII; BESIII; BESIII DAQ; Beijing Electron Positron Collider; Beijing Spectrometer; data acquisition system; event filter; high energy physics experiment; multilevel parallel data collecting; multilevel parallel data processing; online data processing; online farm processing; Computer networks; Concurrent computing; Data acquisition; Data analysis; Data processing; Electrons; Filters; Physics; Positrons; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Real Time Conference, 2009. RT '09. 16th IEEE-NPSS

Conference_Location

Beijing

Print_ISBN

978-1-4244-4454-0

Type

conf

DOI

10.1109/RTC.2009.5321573

Filename

5321573