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Progress at JET in integrating ITER-relevant core and edge plasmas within the constraints of an ITER-like wall
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2015 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 57, no 3, 035004Article in journal (Refereed) Published
Abstract [en]

This paper reports the progress made at JET-ILW on integrating the requirements of the reference ITER baseline scenario with normalized confinement factor of 1, at a normalized pressure of 1.8 together with partially detached divertor whilst maintaining these conditions over many energy confinement times. The 2.5 MA high triangularity ELMy H-modes are studied with two different divertor configurations with D-gas injection and nitrogen seeding. The power load reduction with N seeding is reported. The relationship between an increase in energy confinement and pedestal pressure with triangularity is investigated. The operational space of both plasma configurations is studied together with the ELM energy losses and stability of the pedestal of unseeded and seeded plasmas. The achievement of stationary plasma conditions over many energy confinement times is also reported.

Place, publisher, year, edition, pages
2015. Vol. 57, no 3, 035004
Keyword [en]
tokamak, high triangularity, seeding, power load, pedestal, confinement
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-163467DOI: 10.1088/0741-3335/57/3/035004ISI: 000350135000004ScopusID: 2-s2.0-84923230328OAI: diva2:800849

QC 20150408

Available from: 2015-04-08 Created: 2015-04-07 Last updated: 2015-04-08Bibliographically approved

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Frassinetti, Lorenzo
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