Influence of freon on charge density build-up in a solid insulator
Bibliographic record
Abstract
The charge generation at the surface of and within an acrylic glass spacer was measured using a capacitive probe in freon as a function of gas pressure and the level, duration and polarity of a dc applied voltage. Typically the rate of charge build up increased with increasing gas pressure from 0.174 /spl mu/C/m/sup 2//s at 0.1 MPa to 0.97 /spl mu/C/m/sup 2//s at 0.4 MPa a fixed applied voltage of 80 kV. At a fixed gas pressure of 0.1 MPa the charge build up increased from 2.6/spl times/10/sup -3/ /spl mu/C/m/sup 2//s at 2 kV to 174/spl times/10/sup -3/ /spl mu/C/m/sup 2//s at 80 kV. The saturated charge density increased linearly with increasing voltage from 1.3 /spl mu/C/m/sup 2/ at 2 kV to 61.2 /spl mu/C/m/sup 2/ at 80 kV, for 0.1 MPa. The charging current was also monitored and found to decrease rapidly with increasing time until saturation is reached. The saturated current increased, at a fixed pressure, with increasing voltage. It also increased with increasing pressure at a fixed applied voltage. The observed charge build up is governed by the total surface and volume resistances of the insulator.>
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".