User:Esolano: Difference between revisions
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==== Study of high temperature pedestals==== | ==== Study of high temperature pedestals==== | ||
Specific experiments were made at JET to study high temperature pedestals, in the range Te_ped ~2.5-5 keV. The idea was to see if the ELMs [http://www.example.com link title] are qualitatively different when resistivity and collisionality are low. The surprising result of the experiment was a new insight on pedestal stability: with low gas fuelling and low recycling conditions (required to achieve high temperature pedestals) an Outer Mode [http://www.example.com link title] often appears, delaying ELMs. The outer mode had been assumed to be an ideal kink, unstable in the steep gradient region of the pedestal, which would eventually grow into an ELM. We have now found that the outer mode is a fairly stable current ribbon, lasting as much as 1.5 s, located at the top of the pedestal. There are tantalising similarities with the EHO [http://www.example.com link title] observed in DIII-D. This could provide a new route to ELM-free operation. | |||
# Observation of confined current ribbon in JET plasmas, to be published in PRL May 2010 | # Observation of confined current ribbon in JET plasmas, to be published in PRL May 2010 | ||
Revision as of 15:29, 5 May 2010
Personal Information
- Name : Emilia R. Solano (Emilia Rodríguez-Solano Rineiro)
- Address: Asociación EURATOM-CIEMAT para Fusión, Av. Complutense 22, E-28040 Madrid, España
- email: emilia.solano at ciemat.es
Interests
Theory and Applied Theory in Plasma Physics
- Equilibrium in tokamaks: the Grad-Shafranov equation
- Critical equilibria in tokamaks and confinement regimes
- Neoclassical theory in stellarators and tokamaks
JET experimental studies
Study of high temperature pedestals
Specific experiments were made at JET to study high temperature pedestals, in the range Te_ped ~2.5-5 keV. The idea was to see if the ELMs link title are qualitatively different when resistivity and collisionality are low. The surprising result of the experiment was a new insight on pedestal stability: with low gas fuelling and low recycling conditions (required to achieve high temperature pedestals) an Outer Mode link title often appears, delaying ELMs. The outer mode had been assumed to be an ideal kink, unstable in the steep gradient region of the pedestal, which would eventually grow into an ELM. We have now found that the outer mode is a fairly stable current ribbon, lasting as much as 1.5 s, located at the top of the pedestal. There are tantalising similarities with the EHO link title observed in DIII-D. This could provide a new route to ELM-free operation.
- Observation of confined current ribbon in JET plasmas, to be published in PRL May 2010
- High Temperature Pedestals in JET and confined current filaments EPS 2010 Oral
- Study of ELMs (Edge Localised Modes)
- Study of transport barrier formation
Tokamak Design
- TEXT Upgrade
- USTX: the University Spherical Tokamak Experiment design proposal