TJ-II:Role of isotope mass on the radial width of Zonal Flows: Difference between revisions

TJ-II:Role of isotope mass on the radial width of Zonal Flows (view source)

Revision as of 20:55, 27 January 2019

208 bytes added , 27 January 2019

→‎Ulises Losada

U6576

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 Carlos Hidalgo (Ciemat)
-== Ulises Losada ==
+== Description ==
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-Time-space properties of the global potential oscillation, which is ascribed to the low frequency zonal flows, have been investigated in two plasmas produced by ECRH and NBI heating schemes that are characterized by different mean radial electric field structures.
+Time-space properties of the global potential oscillation, which is related to the low frequency zonal flows, have been investigated in two plasma scenarios produced by ECRH and NBI heating schemes that are characterized by different mean radial electric field structures.
-The width of the oscillating structure strongly depends on the heating scheme <ref>T Kobayashi, U Losada, B Liu et al., Nuclear Fusion (2019) in press</ref>. Preliminary results roughly suggest that the radial width of LRC increases with the ion mass in NBI scenarios <ref>U Losada PhD Thesis (2019)</ref>. Those results show, for the first time and with unprecedented detail, how sensitive are the properties of zonal flows to plasma conditions, providing a key experimental guidance for model validation.
-To goal of this proposal is to expand the existing database of the width of zonal flows with emphasis on the isotope mass effect.
+The width of the oscillating structure strongly depends on the heating scheme <ref>T Kobayashi, U Losada, B Liu et al., Nuclear Fusion (2019) in press</ref>. Preliminary results roughly suggest that the radial width of LRC increases with the ion mass in NBI scenarios <ref>U Losada PhD Thesis (2019)</ref>. Those results show, for the first time and with unprecedented detail, how sensitive are the properties of zonal flows to plasma conditions, providing a key experimental guidance for model validation.
+The current database has about 20 discharges (10 in NBI and 10 in ECRH plasmas). As we need to asses the reproducibility of the previous results, the goal of this proposal is to expand the existing database of the width of zonal flows with special emphasis on the isotope mass effect.
+ Reference plasma pulses: 43702-09; 44202-11
 == collaboration ==