A Monte Carlo study of photoelectron extraction efficiency from CsI photocathodes into Xe–CH<sub>4</sub> and Ne–CH<sub>4</sub> mixtures
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Bibliographic record
Abstract
The extraction efficiency f for the photoelectrons emitted from a CsI photocathode into gaseous Xe–CH 4 and Ne–CH 4 mixtures is investigated by Monte Carlo simulation. The results are compared with earlier calculations in Ar–CH 4 mixtures and in the pure gases Xe, Ar, Ne and CH 4 . The calculations examine the dependence of f on the density-reduced electric field E / N in the 0.1–40 Td range, on the incident photon energy E ph in the 6.8–9.8 eV (183–127 nm) VUV range and on the mixture composition. Results calculated for irradiation of the photocathode with a Hg(Ar) lamp are compared with experimental measurements for this lamp. To test the electron scattering cross-sections used in the simulations, electron drift parameters in Xe, Ne and their mixtures with CH 4 are also presented and compared with available experimental data.
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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) | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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