Bibliographic record
Abstract
The polarization of Balmer-alpha radiation excited in collisions of electrons with atomic hydrogen is presented for an electron energy range from threshold to 1000 eV. Measurements are in good agreement with calculations carried out using either convergent-close-coupling or R-matrix with pseudo-states approaches. Cascade is demonstrated to have a significant effect. Balmer-alpha excitation function data are also presented. A previous measurement of the polarization of Balmer-alpha following dissociative excitation of H2 by electrons is confirmed and extended. The electron impact excitation spectrum of atomic and molecular nitrogen in the VUV range (800 A--1800 A) is presented. The excitation functions of the 1135 A and the 1200 A transitions are obtained. About 5% of nitrogen molecules are dissociated using a microwave discharge source and a mixture of 95% helium and 5% nitrogen gases. Other lines proved to have too small an emission cross section for the electron impact excitation process on atomic nitrogen. Thus the 1243 A, 1494 A, 1745 A N lines and the 1085 A N+ line could not be studied using the small dissociation fractions obtained in the present work. Electron impact excitation of fluorine and sulfur atoms is presented. The spectrum of Sulfur Hexafluoride (SF6) in the VUV range from 800 A--1700 A is recorded. A 70% dissociation fraction was obtained using the microwave discharge unit with SF6 and He targets. The absolute emission cross section for the 807 A fluorine transition is found to be 2.21 +/- 1.20 x 10-19 cm 2 at 200 eV electron energy. As for sulfur, the absolute emission cross section for the 1474 A transition is 2.46 +/- 1.38 x 10-19 cm2 at 95 eV and for the 1667 A transition is 1.87 +/- 1.31 x 10-19 cm 2 at 85 eV. Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4994. Adviser: J. W. McConkey. Thesis (Ph.D.)--University of Windsor (Canada), 2003.
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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".