Cover Image

The ATLAS ReadOut System - Performance with first data and perspective for the future

The ATLAS ReadOut System (ROS) receives data fragments from ∼1600 detector readout links, buffers them and provides them on demand to the second-level trigger or to the event building system. The ROS is implemented with ∼150PCs. Each PC houses a few, typically 4, custom-built PCI boards (ROBIN) and...

Full description

Saved in:
Bibliographic Details
Main Authors: Crone, Gordon (Author) , Della Volpe, D. (Author) , Gorini, B. (Author) , Green, B. (Author) , Joos, M. (Author) , Kieft, G. (Author) , Kordas, K. (Author) , Kugel, Andreas (Author) , Misiejuk, A. (Author) , Schroer, Nicolai (Author) , Teixeira-Dias, P. (Author) , Tremblet, L. (Author) , Vermeulen, J. (Author) , Wickens, F. (Author) , Werner, P. (Author)
Format: Article (Journal)
Language:English
Published: 7 March 2010
In: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment
Year: 2010, Volume: 623, Issue: 1, Pages: 534-536
ISSN:1872-9576
DOI:10.1016/j.nima.2010.03.061
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nima.2010.03.061
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S016890021000625X
Get full text
Author Notes:G. Crone, D. Della Volpe, B. Gorini, B. Green, M. Joos, G. Kieft, K. Kordas, A. Kugel, A. Misiejuk, N. Schroer, P. Teixeira-Dias, L. Tremblet, J. Vermeulen, F. Wickens, P. Werner
Description
Summary:The ATLAS ReadOut System (ROS) receives data fragments from ∼1600 detector readout links, buffers them and provides them on demand to the second-level trigger or to the event building system. The ROS is implemented with ∼150PCs. Each PC houses a few, typically 4, custom-built PCI boards (ROBIN) and a 4-port PCIe Gigabit Ethernet NIC. The PCs run a multi-threaded object-oriented application managing the requests for data retrieval and for data deletion coming through the NIC, and the collection and output of data from the ROBINs. At a nominal event fragment arrival rate of 75kHz the ROS has to concurrently service up to approximately 20kHz of data requests from the second-level trigger and up to 3.5kHz of requests from event building nodes. The full system has been commissioned in 2007. Performance of the system in terms of stability and reliability, results of laboratory rate capability measurements and upgrade scenarios are discussed in this paper.
Item Description:Gesehen am 18.07.2023
Physical Description:Online Resource
ISSN:1872-9576
DOI:10.1016/j.nima.2010.03.061

Similar Items