Real-time multi-threaded reflectometry density profile reconstructions on COMPASS Tokamak

Kód výsledku v IS VaVaI

RIV/61389021:_____/19:00521657 - isvavai.cz

Výsledek na webu

https://iopscience.iop.org/article/10.1088/1748-0221/14/11/C11023

DOI - Digital Object Identifier

10.1088/1748-0221/14/11/C11023

Jazyk výsledku

angličtina

Název v původním jazyce

Real-time multi-threaded reflectometry density profile reconstructions on COMPASS Tokamak

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Real-time multi-threaded reflectometry density profile reconstructions on COMPASS Tokamak

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

LM2015045: COMPASS – Tokamak pro výzkum termonukleární fúze

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

C11023

Kód UT WoS článku

000507588300023

EID výsledku v databázi Scopus

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