Double sublimation system to deposit molecules from solid organic compounds onto a cryogenic substrate: Thymine on solid argon
Bibliographic record
Abstract
We report on the design, operation, and performance of a double sublimation system for the deposition of a submonolayer up to a few layers of a low-vapor pressure molecular solid compound onto a cryogenic substrate. The system consists of a primary oven (i.e., crucible type) to degas and first sublimate the compound onto the tip of a secondary oven (i.e., finger type), which is then used to transport the purified compound inside an analysis chamber and sublimate it just in front of the cryogenic substrate. The latter is kept at exactly the same position all the time, which is essential for experiments sensitive to target position. Besides, the negligible radiant heat transfer from the tip of the secondary oven allows operation in the presence of a cryogenic substrate consisting of an inert gas solid. The overall performance of the system is studied by EEL spectroscopy for thymine deposited onto a multilayer film of Ar used as an inert cryogenic substrate.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 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 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".