Magnetic perturbation experiments on MAST L- and H-mode plasmas using internal coils

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F11%3A00366888" target="_blank" >RIV/61389021:_____/11:00366888 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0741-3335/53/6/065011" target="_blank" >http://dx.doi.org/10.1088/0741-3335/53/6/065011</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0741-3335/53/6/065011" target="_blank" >10.1088/0741-3335/53/6/065011</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnetic perturbation experiments on MAST L- and H-mode plasmas using internal coils

Popis výsledku v původním jazyce

Experiments have been performed on MAST using internal (n = 3) resonant magnetic perturbation (RMP) coils. The application of the RMPs to L-mode discharges has shown a clear density pump-out when the field line pitch angle at the low-field side of the plasma is sufficiently well aligned with the applied field. The application of the RMPs before the L?H transition increases the power required to achieve H-mode by at least 30%. In type I ELMing H-mode discharges, at a particular value of q95, the ELM frequency can be increased by a factor of 5 by the application of the RMPs. This effect on the ELMs and the L-mode density pump-out is not correlated with the width of the region for which the Chirikov parameter, calculated using the vacuum field, is greaterthan 1 but may be correlated with the size of the resonant component of the applied field in the pedestal region or with the location of the peak plasma displacement when the plasma response is taken into account.

Název v anglickém jazyce

Magnetic perturbation experiments on MAST L- and H-mode plasmas using internal coils

Popis výsledku anglicky

Experiments have been performed on MAST using internal (n = 3) resonant magnetic perturbation (RMP) coils. The application of the RMPs to L-mode discharges has shown a clear density pump-out when the field line pitch angle at the low-field side of the plasma is sufficiently well aligned with the applied field. The application of the RMPs before the L?H transition increases the power required to achieve H-mode by at least 30%. In type I ELMing H-mode discharges, at a particular value of q95, the ELM frequency can be increased by a factor of 5 by the application of the RMPs. This effect on the ELMs and the L-mode density pump-out is not correlated with the width of the region for which the Chirikov parameter, calculated using the vacuum field, is greaterthan 1 but may be correlated with the size of the resonant component of the applied field in the pedestal region or with the location of the peak plasma displacement when the plasma response is taken into account.

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

<a href="/cs/project/GAP205%2F11%2F2341" target="_blank" >GAP205/11/2341: Kontrola okrajových nestabilit plazmatu v tokamacích pomocí vnějších magnetických poruch</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Plasma Physics and Controlled Fusion

ISSN

0741-3335

e-ISSN

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Svazek periodika

53

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

065011-065011

Kód UT WoS článku

000290558900014

EID výsledku v databázi Scopus

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