The data acquisition system of the Stockholm educational air shower array

• The Stockholm Educational Air Shower Array (SEASA) project is deploying an array of plastic scintillator detector stations on school roofs in the Stockholm area. Signals from GPS satellites are used to time synchronise signals from the widely separated detector stations, allowing cosmic ray air showers to be identified and studied. A low-cost and highly scalable data acquisition system has been produced using embedded Linux processors which communicate station data to a central server running a MySQL database. Air shower data can be visualised in real-time using a Java-applet client. It is also possible to query the database and manage detector stations from the client. In this paper, the design and performance of the system are described.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Datorsystem (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Computer Systems (hsv//eng)

Nyckelord

Arrays

Computer operating systems

Database systems

Global positioning system

Java programming language

Scintillation counters

Synchronization

Air shower arrays

Computer operating system- Linux

Plastic scintillator detector stations

Stockholm Educational Air Shower Array (SEASA)

Data acquisition

Publikations- och innehållstyp

ref (ämneskategori)

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