Studies of emission spectra in helium plasmas at atmospheric pressure and local thermodynamical equilibrium
Why this work is in the frame
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Bibliographic record
Abstract
A collisional-radiative model coupled with the electron Boltzmann equation is used to perform a parametric study of the excitation spectrum in microwave-induced helium plasmas at atmospheric pressure. It is shown that the populations of the helium excited levels are much higher than predicted by the Saha equation. The excitation spectrum does not follow a Boltzmann distribution and is typically characterized by two excitation temperatures independent of the electron temperature. At sufficiently large electron density, the levels very close to the continuum limit come in partial Saha equilibrium. When nitrogen impurities are introduced into helium, the populations of the helium excited levels strongly decrease and drastically change the behavior of the plasma with respect to Saha equilibrium.
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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) | 0.000 | 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 it