A quantitative study of the forbidden and intercombination transitions arising from the Li-like Al autoionizing levels
Bibliographic record
Abstract
This work presents results from detailed quantitative description of the level population kinetics responsible for the relatively high line-intensity of the forbidden and intercombination transitions arising from autoionization states. The goal is to investigate the influence of different atomic processes on the emission spectrum of the laser-produced aluminum plasma obtained at the nhelix-laser test bed facility at GSI (PRA 63, 032716). In the experiment a Nd-glass YAG laser beam having 50 J pulse energy, 15 ns full width half maximum duration and 1.064 μm wavelength is focused on a massive Al target. To simulate the experimental reported spectrum, the population kinetics is investigated based on a collisional radiative model. The theoretical spectroscopic investigation reported here indicates the existence of anomalous high intensity X-ray intercombination and two-electron transitions arising from autoionizing states in Li-like Al ion. Detailed atomic structure calculation and kinetics modeling is performed to find out the individual states involved, and the population density distribution over them. Presented results are useful for femtosecond-laser produced plasma experiments and diagnostics.
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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".