Number of the records: 1
Real-time multi-threaded reflectometry density profile reconstructions on COMPASS Tokamak
- 1.
SYSNO ASEP 0521657 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Real-time multi-threaded reflectometry density profile reconstructions on COMPASS Tokamak Author(s) Lourenco, P. D. (PT)
Santos, J.M. (PT)
Bogár, Ondrej (UFP-V) ORCID
Havránek, Aleš (UFP-V) ORCID
Havlíček, Josef (UFP-V) RID, ORCID
Zajac, Jaromír (UFP-V) RID
Hron, Martin (UFP-V) RID, ORCID
Pánek, Radomír (UFP-V) RID
Fernandes, H. (PT)Number of authors 9 Article number C11023 Source Title Journal of Instrumentation. - : Institute of Physics Publishing - ISSN 1748-0221
Roč. 14, November (2019)Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords plasma position ; microwave reflectometry ; upgrade ; Computing (architecture, farms, GRID for recording, storage, archiving, and distribution of data) ; Control systems ; Data processing methods ; Nuclear instruments and methods for hot plasma diagnostics OECD category Fluids and plasma physics (including surface physics) R&D Projects LM2015045 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFP-V - RVO:61389021 UT WOS 000507588300023 DOI 10.1088/1748-0221/14/11/C11023 Annotation In COMPASS tokamak, the ordinary mode (O-mode) microwave reflectometry diagnostic has been equipped with an upgraded acquisition system and dedicated computational node running the Multi-Threaded Application Real-Time executor (MARTe). This upgrade aims at the deployment of a real-time (RT) plasma position reflectometry (PPR) diagnostic system for future application in closed-loop plasma position control experiments. The system is synchronized with COMPASS MARTe main controller slow cycle, running at 500 mu s, and allows a maximum measurement delivery latency of 450 mu s. The RT signal processing algorithms, used to reconstruct the O-mode density profiles are the most time consuming step in the control cycle. This is due to the computation of a large number of Fast Fourier Transforms (FFT) over long data arrays, produced for each reflectometry profile measurement. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2020 Electronic address https://iopscience.iop.org/article/10.1088/1748-0221/14/11/C11023
Number of the records: 1