Separating $^{39}$Ar from $^{40}$Ar by cryogenic distillation with Aria for dark matter searches
Bibliographic record
Abstract
Aria is a plant hosting a 350 m cryogenic iso- \ntopic distillation column, the tallest ever built, which is being \ninstalled in a mine shaft at Carbosulcis S.p.A., Nuraxi-Figus \n(SU), Italy. Aria is one of the pillars of the argon dark-matter \nsearch experimental program, lead by the Global Argon Dark \nMatter Collaboration. It was designed to reduce the isotopic \nabundance of 39 Ar in argon extracted from underground \nsources, called Underground Argon (UAr), which is used for \ndark-matter searches. Indeed, 39 Ar is a β-emitter of cos- \nmogenic origin, whose activity poses background and pile- \nup concerns in the detectors. In this paper, we discuss the \nrequirements, design, construction, tests, and projected per- \nformance of the plant for the isotopic cryogenic distillation of \nargon. We also present the successful results of the isotopic \ncryogenic distillation of nitrogen with a prototype plant.
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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) | 0.000 | 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 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".