Tungsten transport in JET H-mode plasmas in hybrid scenario, experimental observations and modelling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00435641" target="_blank" >RIV/61389021:_____/14:00435641 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0029-5515/54/8/083028" target="_blank" >http://dx.doi.org/10.1088/0029-5515/54/8/083028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0029-5515/54/8/083028" target="_blank" >10.1088/0029-5515/54/8/083028</a>

Result language

angličtina

Original language name

Tungsten transport in JET H-mode plasmas in hybrid scenario, experimental observations and modelling

Original language description

The behaviour of tungsten in the core of hybrid scenario plasmas in JET with the ITER-like wall is analysed and modelled with a combination of neoclassical and gyrokinetic codes. In these discharges, good confinement conditions can be maintained only forthe first 2?3 s of the high power phase. Later W accumulation is regularly observed, often accompanied by the onset of magneto-hydrodynamical activity, in particular neoclassical tearing modes (NTMs), both of which have detrimental effects on the globalenergy confinement. The dynamics of the accumulation process is examined, taking into consideration the concurrent evolution of the background plasma profiles, and the possible onset of NTMs. Two time slices of a representative discharge, before and during the accumulation process, are analysed with two independent methods, in order to reconstruct the W density distribution over the poloidal cross-section

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Nuclear Fusion

ISSN

0029-5515

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

8

Country of publishing house

AT - AUSTRIA

Number of pages

26

Pages from-to

083028-083028

UT code for WoS article

000339991600032

EID of the result in the Scopus database

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