Argon Calibration of a Cryogenic Distillation Column for Xenon Isotopic Enrichment
Bibliographic record
Abstract
This work presents the calibration for a 14.6 m-high cryogenic distillation column which is performed using argon. This column is located at SNOLAB, an underground lab in Canada, and it is planned to study the potential of using distillation for xenon isotopic enrichment. Our study yields a measurement of the still's height equivalent to theoretical plate (HETP) of 4.290.13 cm, consistent with a previous study using the same packing material. A new approach introduced in this analysis achieves a smaller error for this HETP compared to the previous study. Our HETP value will be used in the measurement of the vapour pressure isotopic effect of xenon in the future. In addition, we provide a measurement for the fractionation factor ln( 38-40 ) = (2.731 0.017)10 -3 at the nominal boiling point, which has improved error and is consistent with theoretical values. i First of all, I would like to express my deepest appreciation and gratitude to my supervisor Dr. Caio Licciardi for his patience
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".