Edge turbulent transport with lower hybrid current drive in the Hefei Tokamak-7
Bibliographic record
Abstract
The edge plasma transport around the last closed flux surface was investigated using Langmuir probes in a lower hybrid current drive (LHCD) experiment in the Hefei Tokamak-7 [J. K. Xie et al., in Proceedings of the 16th International Conference on Fusion Energy, Montreal, 1996 (International Atomic Energy Agency, Vienna, 1997), Vol. 1, p. 685]. Fluctuations of plasma density, plasma temperature, and poloidal electric field in the boundary plasma are reduced, hence the electrostastic turbulence-induced particle flux and heat flux both significantly decrease after the application of LHCD. The suppression of density fluctuation is more sensitive to the lower hybrid wave (LHW) than that of temperature fluctuation, which is in agreement with the model proposed by Ware in the presence of flow shear [A. S. Ware et al., Phys. Plasmas 5, 173 (1998)]. The difference between turbulent convective and conductive fluxes depends on such a discrepancy between normalized density fluctuation and temperature fluctuation. It is speculated that the reduced turbulence-induced transport is possibly attributable to a sheared flow resulting from the varying radial electric field, which is formed possibly due to the loss of the energetic electron generated by LHW. In addition, studies show that the effect of magnetohydrodynamic activity, possibly modified by LHCD, on plasma transport could be another possible candidate for the reduced electrostatic turbulent flux.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".