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Software-based data acquisition and processing for neutron detectors at European Spallation Source-early experience from four detector designs
European Spallat Source, Copenhagen, Denmark.
European Spallat Source, Copenhagen, Denmark.
European Spallat Source, Copenhagen, Denmark.
European Spallat Source, Copenhagen, Denmark.
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2018 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 13, no 11, article id T11002Article in journal (Refereed) Published
Abstract [en]

European Spallation Source (ESS) will deliver neutrons at high flux for use in diverse neutron scattering techniques. The neutron source facility and the scientific instruments will be located in Lund, and the Data Management and Software Centre (DMSC), in Copenhagen. A number of detector prototypes are being developed at ESS together with its European in-kind partners, for example: SoNDe, Multi-Grid, Multi-Blade and Gd-GEM. These are all position sensitive detectors but use different techniques for the detection of neutrons. Except for digitization of electronics readout, all neutron data is anticipated to be processed in software. This provides maximum flexibility and adaptability and allows deep inspection of the raw data for commissioning which will reduce the risk of starting up new detector technologies. But it also requires development of high performance software processing pipelines and optimized and scalable processing algorithms. This report provides a description of the ESS system architecture for the neutron data path. Special focus is on the interface between the detectors and DMSC which is based on UDP over Ethernet links. The report also describes the software architecture for detector data processing and the tools we have developed, which have proven very useful for efficient early experimentation, and can be run on a single laptop. Processing requirements for the SoNDe, Multi-Grid, Multi-Blade and Ge-GEM detectors are presented and compared to event processing rates archived so far.

Place, publisher, year, edition, pages
2018. Vol. 13, no 11, article id T11002
Keywords [en]
Computing (architecture, farms, GRID for recording, storage, archiving, and distribution of data), Data acquisition concepts, Neutron detectors (cold, thermal, fast neutrons), Software architectures (event data models, frameworks and databases)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-35163DOI: 10.1088/1748-0221/13/11/T11002ISI: 000450860600001Scopus ID: 2-s2.0-85057622524OAI: oai:DiVA.org:miun-35163DiVA, id: diva2:1269895
Available from: 2018-12-11 Created: 2018-12-11 Last updated: 2018-12-17Bibliographically approved

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Hall-Wilton, Richard

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