Plasma–surface interactions during tokamak disruptions and rapid shutdowns

Hollmann, E. M.; Arnoux, G.; Commaux, N.; Eidietis, N. W.; Evans, T.E.; Granetz, R.; Huber, A.; Humphreys, D.A.; Izzo, V.A.; James, A.N.; Jernigan, T.C.; Lehnen, M.; Maddaluno, G.; Paccagnella, R.; Parks, P.B.; Philipps, V.; Reinke, M.L.; Rudakov, D. L.; Saint‐Laurent, F.; Sizyuk, V.; Strait, E. J.; Wesley, J.C.; Wong, C.P.C.; Yu, J. H.

doi:10.1016/j.jnucmat.2010.10.009

Cited by 41 publications

(23 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…MGI aims at spreading heat loads by radiating most of the plasma stored energy, preventing the generation of REs by increasing the electron density and controlling the CQ duration (in order to limit mechanical loads) by controlling the impurity content and thus the temperature and resistivity of the CQ plasma. A large body of experimental work on MGI exists, including experiments on JET, [6][7][8][9] ASDEX Upgrade, 10 Tore Supra, 11 DIII-D, 12 TEXTOR, 13 Alcator C-MOD, 14 and other devices. Results have shown the capability of MGI to fulfill part of the objectives of the ITER DMS, but not yet all of them.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

et al. 2015

Self Cite

View full text Add to dashboard Cite

Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers) Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication Citation for published version (APA):Fil, A., Nardon, E., Hoelzl, M., Huijsmans, G. T. A., Orain, F., Becoulet, M., ... . Threedimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET. Physics of Plasmas, 22, 062509-1/18. DOI: 10.1063/1.4922846 General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET JOREK 3D non-linear MHD simulations of a D 2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the direction parallel to the magnetic field. It also causes the growth of magnetic islands (m=n ¼ 2=1 and 3/2 mainly) and seeds the 1/1 internal kink mode. O-points of all island chains (including 1/1) are located in front of the MGI, consistently with experimental observations. A burst of MHD activity and a peak in plasma current take place at the same time as in the experiment. However, the magnitude of these two effects is much smaller than in the experiment. The simulated radiation is also much below the experimental level. As a consequence, the thermal quench is not fully reproduced. Directions for progress are identified. Radiation from impurities is a good candidate. V C 2015 AIP Publishing LLC.[http://dx

show abstract

Section: Introductionmentioning

confidence: 99%

Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Since too high heating rates or too low gas flow during the debinding process could promote cracking of polymer chains and lead to a residual carbon content in the sample, the 3 ) is mainly affiliated to porosity ( Fig. 4).…”

Section: Thermal Diffusivity Impurities and Densitymentioning

confidence: 99%

“…In both applications tungsten or tungsten alloys are the preferred materials to withstand short-duration high heat-flux loadings. Especially critical events like edgelocalized-modes (ELMs) and vertical displacements (VDEs) limit the lifetime of PFMs [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Tape cast isotropic, fine-grained tungsten for thermo-cyclic loading applications

Sommerer

Werner

et al. 2016

Fusion Engineering and Design

View full text Add to dashboard Cite

This paper introduces tape casting as a new route for the production of isotropic and fine-grained tungsten components. Microstructural and thermal properties of tape cast tungsten samples are determined. Thermal shock behavior according to the thermo-cyclic loading of standing X-ray anodes is investigated and compared to the behavior of a rolled tungsten grade. The development of surface roughness during the thermal shock loading is discussed in relation to the development of the grain structure and crack pattern. The finegrained and stable microstructure of the tape cast material exhibits less roughening under such test conditions.

show abstract

“…Холльманн (Отделение Калифорний-ского университета в Сан-Диего) сделал обзор-ный доклад о взаимодействии плазмы с по-верхностью при срывах плазмы и быстром прекращении термоядерной реакции в тока-маках [46]. Срыв плазмы -это общая МГД-неустойчивость, прекращающая разряд в токама-ке, при которой выделение тепловой и магнитной энергии плазмы может вызвать повреждения кон-тактирующих с плазмой компонентов реактора.…”

Section: день пятыйunclassified

19th INTERNATIONAL CONFERENCE ON PLASMA SURFACE INTERACTIONS IN CONTROLLED FUSION DEVICES (PSI-19) (SAN DIEGO, USA, 24—28 MAY 2010)

Kolbasov¹

2010

PAST-TF

View full text Add to dashboard Cite

Приводится краткий обзор наиболее интересных, по мнению автора, обзорных и приглашённых лекций и устных докладов, прочи-танных на конференции. Они были посвящены в основном нерешённым технологическим проблемам, связанным с сооружением международного термоядерного экспериментального реактора ИТЭР: применению вольфрамовых мишеней в диверторе, локаль-ным и переменным тепловым нагрузкам на первую стенку и дивертор, возможности уменьшить удержание трития в токамаках с углеродными мишенями дивертора, подавлению срывов плазмы и локализованных периферийных мод (ЛПМ).Ключевые слова: ИТЭР, токамак, дивертор, первая стенка, вольфрам. , 24-28 MAY 2010). B.N. KOLBASOV. The author presents a brief overview of the most interesting, in his opinion, review, invited and oral presentations delivered at the conference. They were addressed mainly to unsolved technological problems connected with the construction of International Thermonuclear Experimental Reactor ITER: application of tungsten divertor targets, local and transient heat loads on the first wall and divertor, ability to decrease tritium retention in tokamaks with carbon divertor targets, suppression of plasma disruptions and edge localized modes (ELMs). 19th INTERNATIONAL CONFERENCE ON PLASMA SURFACE INTERACTIONS IN CONTROLLED FUSION DEVICES (PSI-19) (SAN DIEGO, USA

show abstract

Plasma–surface interactions during tokamak disruptions and rapid shutdowns

Cited by 41 publications

References 57 publications

Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

Tape cast isotropic, fine-grained tungsten for thermo-cyclic loading applications

19th INTERNATIONAL CONFERENCE ON PLASMA SURFACE INTERACTIONS IN CONTROLLED FUSION DEVICES (PSI-19) (SAN DIEGO, USA, 24—28 MAY 2010)

Contact Info

Product

Resources

About