Positive and negative polarity current pulse characteristics of a helium glow discharge in a cylinder-plane electrode gap at atmospheric pressure
Bibliographic record
Abstract
The positive and negative polarity discharge current pulse forms were examined between steel cylinder-Al2O3 plane electrodes in helium glow and pseudoglow discharges under atmospheric pressure at 10 kHz. The theoretically determined current pulses agreed very closely in form and magnitude with those recorded experimentally. The electronic and ionic charge carrier components comprising the negative polarity current pulse were found to be very nearly equal in magnitude, in contradistinction to the positive polarity pulse, where the electronic charge carrier component was dominant. This larger electronic charge carrier component was reflected in the magnitude of the corresponding photocurrent pulse, which substantially exceeded that of the negative polarity counterpart. The glow discharge regime current pulse forms were also compared to the pulse forms characterizing pseudoglow discharges, also obtained at 10 kHz but at a more elevated voltage, as well as with those recorded at a reduced frequency of 4 kHz but at the same value of applied voltage. Good agreement was also found to exist between the experimentally determined ultrahigh-speed image patterns of the propagating positive and negative discharges and the corresponding calculated electron density contours within the gap.
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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) | 0.001 | 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 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".