Longitudinal impedance of a prototype kicker magnet system
Bibliographic record
Abstract
The longitudinal impedance of a kicker magnet system for the proposed KAON factory has been measured from 0.3 to 200 MHz. The measurement was done by transforming the kicker magnet under test into a coaxial line in order to measure the transmission parameter S/sub 21/ through the line. The measurement was performed in two frequency ranges. From 0.3 to 50 MHz the magnet was transformed into a 50 /spl Omega/ coaxial line, and from 45 to 200 MHz into a 180 /spl Omega/ coaxial line. Resonances in the longitudinal impedance spectrum are due to the electrical resonant modes of the kicker magnet system. The effect on the longitudinal impedance of a speed-up network and a saturating inductor, installed on the input to the kicker magnet to improve its kick performance, was determined. The speed-up network can damp some of the resonances whereas the saturating inductor can eliminate the resonances due to the input cable of the kicker magnet. Above 45 MHz where attenuation in the LC cells of the kicker magnet is strong, external components connected to the kicker magnet have negligible influence on the longitudinal impedance. Hence the longitudinal impedance spectrum of the kicker magnet in the 45 to 200 MHz frequency range does not depend on external components such as the speed-up network, the saturating inductor and the input and output cables.>
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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 | 0.001 | 0.001 |
| 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 | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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".