Low-energy electron scattering cross section for the production of CO within condensed acetone
Bibliographic record
Abstract
We report on the low-energy electron induced production of CO within thin solid films of acetone condensed at low temperature on a solid Ar substrate. The CO fragments, which remain trapped within the bulk of the acetone film, are detected in situ via their first electronic state a 3Π using high-resolution electron-energy-loss spectroscopy. The production of CO is studied as a function of the electron energy (2–25 eV), electron dose, and film thickness. The energy dependence of CO production is calibrated in terms of an electron scattering cross section σp. It is characterized by an energy threshold at 8 eV, a strong rise up to about 14 eV, and a broad maximum of σp≈6.8×10−17 cm2 at 16 eV followed by a relatively small and monotonous decrease up to 25 eV. The production of CO is discussed in terms of the formation of several core-excited electron resonances, which may lead directly to the fragmentation of the molecule via dissociative electron attachment or indirectly by decaying into an entirely repulsive part of the corresponding neutral excited state and positive ion states.
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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".