Title :
The data acquisition system of the Stockholm educational air shower array
Author :
Hofverberg, Petter ; Johansson, Henrik ; Pearce, Mark ; Rydström, Stefan ; Wikstrom, C.
Author_Institution :
R. Inst. of Technol., Stockholm
Abstract :
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
Keywords :
Java; SQL; cosmic ray showers; data acquisition; solid scintillation detectors; space research; synchronisation; GPS satellites; Java-applet client; MySQL database; SEASA project; Stockholm Educational Air Shower Array; central server; cosmic ray air showers; data acquisition system; embedded Linux processors; high schools; plastic scintillator detector; time synchronization; widely separated detector stations; Data acquisition; Detectors; Educational institutions; Global Positioning System; Linux; Plastics; Satellites; Sensor arrays; Signal processing; Visual databases; Air showers; cosmic rays; high schools;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2005.862784
