Plasma tomographic reconstruction from tangentially viewing camera with background subtraction

Kód výsledku v IS VaVaI

RIV/61389021:_____/14:00435638 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1063/1.4862652

DOI - Digital Object Identifier

10.1063/1.4862652

Jazyk výsledku

angličtina

Název v původním jazyce

Plasma tomographic reconstruction from tangentially viewing camera with background subtraction

Popis výsledku v původním jazyce

Light reflections are one of the main and often underestimated issues of plasma emissivity reconstruction in visible light spectral range. Metallic and other specular components of tokamak generate systematic errors in the optical measurements that couldlead to wrong interpretation of data. Our analysis is performed at data from the tokamak COMPASS. It is a D-shaped tokamak with specular metallic vessel and possibility of the H-mode plasma. Data from fast visible light camera were used for tomographicreconstruction with background reflections subtraction to study plasma boundary. In this article, we show that despite highly specular tokamak wall, it is possible to obtain a realistic reconstruction. The developed algorithm shows robust results despiteof systematic errors in the optical measurements and calibration. The motivation is to obtain an independent estimate of the plasma boundary shape.

Název v anglickém jazyce

Plasma tomographic reconstruction from tangentially viewing camera with background subtraction

Popis výsledku anglicky

Light reflections are one of the main and often underestimated issues of plasma emissivity reconstruction in visible light spectral range. Metallic and other specular components of tokamak generate systematic errors in the optical measurements that couldlead to wrong interpretation of data. Our analysis is performed at data from the tokamak COMPASS. It is a D-shaped tokamak with specular metallic vessel and possibility of the H-mode plasma. Data from fast visible light camera were used for tomographicreconstruction with background reflections subtraction to study plasma boundary. In this article, we show that despite highly specular tokamak wall, it is possible to obtain a realistic reconstruction. The developed algorithm shows robust results despiteof systematic errors in the optical measurements and calibration. The motivation is to obtain an independent estimate of the plasma boundary shape.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

GAP205/10/2055: Numerická analýza a fyzikální interpretace ITER-relevantních experimentálních dat ze Společného evropského toru JET

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Review of Scientific Instruments

ISSN

0034-6748

e-ISSN

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Svazek periodika

85

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

013509-013509

Kód UT WoS článku

000331217300030

EID výsledku v databázi Scopus

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