Past, present and future of data acquisition systems in high energy physics experiments

Toledo, J.F.; Mora, Francisco; Müller, H.

doi:10.1016/s0141-9331(03)00065-6

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…Thus the links from the RU to the computing nodes is not latency critical. It has been found that the latest promising technology option of 10-Gigabit Ethernet [5] with ample ecosystem are most suitable for the DAQ links in the experiments. In Table 1, we give the detailed specifications of the three interface links used in the HEP experiments for the acquisition of data.…”

Section: High-speed Protocolsmentioning

confidence: 99%

“…The experiments are continuously upgraded with sophisticated detectors, electronics and DAQ systems [2,3]. The DAQ architectures have been evolving continuously to cope up with the demands of the experiments [4,5]. The LHC at CERN will go through a major upgrade during the long shutdown (LS2) period, following which the beam luminosities will increase by about an order of magnitude from their present values.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of multi-gigabit transceivers for high speed data communication links in HEP Experiments

Khan

Mitra

Das

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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The scheme of the data acquisition (DAQ) architecture in High Energy Physics (HEP) experiments consist of data transport from the front-end electronics (FEE) of the online detectors to the readout units (RU), which perform online processing of the data, and then to the data storage for offline analysis. With major upgrades of the Large Hadron Collider (LHC) experiments at CERN, the data transmission rates in the DAQ systems are expected to reach a few TB/sec within the next few years. These high rates are normally associated with the increase in the high-frequency losses, which lead to distortion in the detected signal and degradation of signal integrity. To address this, we have developed an optimization technique of the multi-gigabit transceiver (MGT) and implemented it on the state-of-the-art 20nm Arria-10 FPGA manufactured by Intel Inc. The setup has been validated for three available high-speed data transmission protocols, namely, GBT, TTC-PON and 10 Gbps Ethernet. The improvement in the signal integrity is gauged by two metrics, the Bit Error Rate (BER) and the Eye Diagram. It is observed that the technique improves the signal integrity and reduces BER. The test results and the improvements in the metrics of signal integrity for different link speeds are presented and discussed.

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Section: High-speed Protocolsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization of multi-gigabit transceivers for high speed data communication links in HEP Experiments

Khan

Mitra

Das

et al. 2019

Nuclear Instruments and Methods in Physics Research Section A:

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“…-1 - Modern DAQ for HEP and nuclear physics experiments is a result of continuous evolution [4]. The overview of the journey and the different methodologies adopted in the field of high speed DAQ are summarized in the table 1.…”

Section: Introductionmentioning

confidence: 99%

A potent approach for the development of FPGA based DAQ system for HEP experiments

et al. 2017

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With ever increasing particle beam energies and interaction rates in modern High Energy Physics (HEP) experiments in the present and future accelerator facilities, there has always been the demand for robust Data Acquisition (DAQ) schemes which perform in the harsh radiation environment and handle high data volume. The scheme is required to be flexible enough to adapt to the demands of future detector and electronics upgrades, and at the same time keeping the cost factor in mind. To address these challenges, in the present work, we discuss an efficient DAQ scheme for error resilient, high speed data communication on commercially available state-of-the-art FPGA with optical links. The scheme utilises GigaBit Transceiver (GBT) protocol to establish radiation tolerant communication link between on-detector front-end electronics situated in harsh radiation environment to the back-end Data Processing Unit (DPU) placed in a low radiation zone. The acquired data are reconstructed in DPU which reduces the data volume significantly, and then transmitted to the computing farms through high speed optical links using 10 Gigabit Ethernet (10GbE). In this study, we focus on implementation and testing of GBT protocol and 10GbE links on an Intel FPGA. Results of the measurements of resource utilisation, critical path delays, signal integrity, eye diagram and Bit Error Rate (BER) are presented, which are the indicators for efficient system performance.

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“…In particular, control devices based on VME have been a very relevant elements in the last years, [15]. Therefore, EPICS has a wide support for hardware based in this standard.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Analysis of a Nonstandard EPICS Fast Controller

Jugo

Eguiraun

Badillo

et al. 2015

IEEE Trans. Nucl. Sci.

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Abstract-The large scientific projects present new technological challenges, such as the distributed control over a communication network. In particular, the middleware EPICS is the most extended communication standard in particle accelerators. The integration of modern control architectures in these EPICS networks is becoming common, as for example for the PXI/PXIe and xTCA hardware alternatives. In this work, a different integration procedure for PXIe real time controllers from National Instruments is proposed, using LabVIEW as the design tool. This methodology is considered and its performance is analyzed by means of a set of laboratory experiments. This control architecture is proposed for achieving the implementation requirements of the fast controllers, which need an important amount of computational power and signal processing capability, with a tight real-time demand. The present work studies the advantages and drawbacks of this methodology and presents its comprehensive evaluation by means of a laboratory test bench, designed for the application of systematic tests. These tests compare the proposed fast controller performance with a similar system implemented using an standard EPICS IOC provided by the CODAC system.

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Past, present and future of data acquisition systems in high energy physics experiments

Cited by 8 publications

References 5 publications

Optimization of multi-gigabit transceivers for high speed data communication links in HEP Experiments

Optimization of multi-gigabit transceivers for high speed data communication links in HEP Experiments

A potent approach for the development of FPGA based DAQ system for HEP experiments

Design and Performance Analysis of a Nonstandard EPICS Fast Controller

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