Pressure dependence of oxidative removal of tokamak codeposits
Why this work is in the frame
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Bibliographic record
Abstract
New results are presented on the erosion rates of DIII-D and JET codeposits as a function of oxygen pressure (0.21–21 kPa) at three oxidation temperatures (523, 573 and 623 K). The initial D removal rate during oxidation strongly depends on temperature (rate increases with increasing temperature). A strong dependence is also seen on pressure (again, increasing rate with increasing pressure) at 523 and 573 K, but at 623 K the pressure dependence tends to saturate for pressures ⩾2 kPa. The final D content after prolonged oxidation, however, strongly depends on both temperature and pressure in all cases—D content decreases with increasing temperature and increasing pressure. The highest erosion rates observed were ∼2.5 μm h−1 for the DIII-D and ∼3.5 μm h−1 for the JET specimens.
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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