An apparatus to investigate the effects of hot electrons in the aging of polyethylene cables
Bibliographic record
Abstract
It is now established that the aging of organic insulators due to DC or AC voltage stresses involves the interaction of hot electrons within the dielectric and/or at the electrodes. In order to study the details of this aging process in industrial devices, the authors have recently developed an apparatus to probe charge accumulation induced by hot (i.e., low-energy) electrons of very well-defined energies near the surface of thin film samples of cables or other products made of organic dielectric materials. In an ultrahigh vacuum chamber, a monochromatic (/spl Delta/E/spl ap/60 meV) pulsed electron-beam (10/sup -14/-10/sup -12/ C/pulse) of variable energy (0-20 eV) impinges on a sample film of about 100 /spl mu/m thickness. Both electron transmission through, and charge accumulation into, the film are monitored as a function of incident electron energy. An ultraviolet source allows discharge of the sample. The apparatus is described and preliminary results of such measurements are reported for samples cut from polyethylene cables.
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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 | 0.001 | 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 | 0.001 | 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".