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TJ-II: Influence of magnetic configuration on filament dynamics: Difference between revisions
TJ-II: Influence of magnetic configuration on filament dynamics (view source)
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== Experimental campaign == | == Experimental campaign == | ||
2022 | |||
== Proposal title == | == Proposal title == | ||
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== Name and affiliation of proponent == | == Name and affiliation of proponent == | ||
Daniel Carralero, | Daniel Carralero, Igor Voldiner, Gustavo Grenfell, Boudewijn van Milligen, Marian Ochando et al., | ||
== Details of contact person at LNF == | == Details of contact person at LNF == | ||
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== Description of required resources == | == Description of required resources == | ||
In a previous characterization of the boundary of TJ-II <ref> | In a previous characterization of the boundary of TJ-II <ref>E. de la Cal and The TJ-II Team 2016 Nucl. Fusion 56 106031</ref><ref>B.Ph. van Milligen, J.H. Nicolau, B. Liu et al., Nucl. Fusion 58 026030 (2018)</ref><ref>T. Kobayashi, U. Losada, B. Liu et al., Nuclear Fusion 59, 044006 (2019)</ref>, sufficient data for a preliminary evaluation of filaments was gathered <ref> G. Grenfell et al., to be submitted </ref>. Form this first analysis a number of additional requirements were established for a complete characterization of filaments, including: | ||
a) Radially and poloidally separated <math>I_{sat}</math> measurements to carry out correlation-based analysis of filament shape and velocity. | a) Radially and poloidally separated <math>I_{sat}</math> measurements to carry out correlation-based analysis of filament shape and velocity. | ||
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From this, an overview of the experimental program would be: | From this, an overview of the experimental program would be: | ||
a) In a first day of operation, ECRH and NBI plasmas in standard configuration would be probed replicating previous discharges by Kobayashi et al. In this ocasion, both probes would be used to characterize filaments across the SOL in their respective positions and to measure <math>n_e</math>, <math>\phi_f</math> and <math>T_e</math> profiles to the innermost posible position. Time permitting, polarization experiments could be attempted as well. | a) In a first day of operation, ECRH and NBI plasmas in standard configuration would be probed replicating previous discharges by Kobayashi et al. In this ocasion, both probes would be used to characterize filaments across the SOL in their respective positions and to measure <math>n_e</math>, <math>\phi_f</math> and <math>T_e</math> profiles to the innermost posible position. Time permitting, polarization experiments could be attempted as well. Simultaneously, the GPI system would be used in a slow setting to provide a broad evaluation of <math>n_e</math> and <math>T_e</math> in the edge region. | ||
b) On top of these main diagnostics, profile characterization will be carried out using TS, He beam, ECE, interferometry and profile reflectometry. DR will be used to provide measurements of <math>E_r</math> at the edge, thus complementing probe measurements from floating potential. | b) On top of these main diagnostics, profile characterization will be carried out using TS, He beam, ECE, interferometry and profile reflectometry. DR will be used to provide measurements of <math>E_r</math> at the edge, thus complementing probe measurements from floating potential. | ||
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[[Category:TJ-II internal documents]] | [[Category:TJ-II internal documents]] | ||
[[Category:TJ-II experimental proposals | [[Category:TJ-II experimental proposals Spring 2022]] | ||