Ion cyclotron resonance frequency heating in JET during initial operations with the ITER-like wall

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00435645" target="_blank" >RIV/61389021:_____/14:00435645 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1063/1.4884354" target="_blank" >http://dx.doi.org/10.1063/1.4884354</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4884354" target="_blank" >10.1063/1.4884354</a>

Result language

angličtina

Original language name

Ion cyclotron resonance frequency heating in JET during initial operations with the ITER-like wall

Original language description

In 2011/12, JET started operation with its new ITER-Like Wall (ILW) made of a tungsten (W) divertor and a beryllium (Be) main chamber wall.The impact of the new wall materials on the JET Ion Cyclotron Resonance Frequency (ICRF) operation is assessed andsome important properties of JET plasmas heated with ICRF are highlighted. A similar to 20% reduction of the antenna coupling resistance is observed with the ILW as compared with the JET carbon (JET-C) wall. Heat-fluxes on the protecting limiters close the antennas, quantified using Infra-Red thermography (maximum 4.5MW/m(2) in current drive phasing), are within the wall power load handling capabilities. A simple RF sheath rectification model using the antenna near-fields calculated with the TOPICA codecan reproduce the heat-flux pattern around the antennas. ICRF heating results in larger tungsten and nickel (Ni) contents in the plasma and in a larger core radiation when compared to Neutral Beam Injection (NBI) heating.

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

Physics of Plasmas

ISSN

1070-664X

e-ISSN

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Volume of the periodical

21

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

061510-061510

UT code for WoS article

000338995300016

EID of the result in the Scopus database

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