The WASA Data Acquisition System (WDAQ)

Author

Gustafsson, L. ; Marciniewski, P. ; Sukhanov, A.

Author_Institution

Uppsala Univ., Sweden

Volume

1

fYear

1998

fDate

6/20/1905 12:00:00 AM

Firstpage

332

Abstract

The WASA Data Acquisition System (WDAQ) is described. It is a modular, and scalable network based system. The chosen structure facilitate that different old and new front-end electronics standards can work together in an efficient way. Fast hardware triggers are created from discriminated signals from specific parts of the WASA detector by extensive use of programmable logic. The trigger logic is configured to do cluster finding in one or two dimensions. The front-end data is linked together in an event-building switch using the Asynchronous Transfer Mode (ATM) protocol and sent to different PC-stations for further filtering, before put onto tape. The data analysis software uses the ROOT (CERN) system which provides a set of object oriented frameworks with all the functionality needed to handle and analyze large amounts of data in a very efficient way. The slow control software is based on the MIDAS (PSI/TRIUMF) system and comprises a fast online database to keep and monitor all WDAQ parameters

Keywords

asynchronous transfer mode; data acquisition; data analysis; high energy physics instrumentation computing; programmable logic arrays; ATM protocol; Asynchronous Transfer Mode protocol; Data Acquisition System; MIDAS system; ROOT system; WASA; control software; event-building; front-end; network based system; object oriented; programmable logic; trigger logic; triggers; Asynchronous transfer mode; Data acquisition; Data analysis; Detectors; Filtering; Hardware; Programmable logic arrays; Programmable logic devices; Protocols; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-5021-9

Type

conf

DOI

10.1109/NSSMIC.1998.775156

Filename

775156