Experimental study of the influence of the gas pressure and of the wave frequency on the spatial distributions of excited atoms in a surface wave produced plasma
Bibliographic record
Abstract
Summary Form only given, as follows. The authors have reviewed the experimental study of the spatial distribution of excited atoms in plasmas, which reflects the kinetic processes of the discharge. In surface-wave-produced plasmas (SWP) the radial distributions of metastable and radiative atoms are related to those of both the electric field intensity and the electron density. Knowledge of SWPs has improved as a result of the extension of measurements of excited-atom distributions to a larger range of wave frequencies, gas pressures, and electric field azimuthal configurations. In addition, a tomographic method has made it possible to achieve an excellent radial and axial resolution for the study of the optically thin spectral lines and to extend measurements to experimental situations that could not be studied previously. Comparison of these results to predictions of a surface-wave-produced-plasma model that couples wave and plasma equations shows discrepancies that can be explained by two-step excitation rather than direct excitation from the ground level as assumed in the model.>
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 source (direct Gemma or distilled Codex), 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".