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Record W2154118056 · doi:10.1109/pac.1991.165170

Quadrupole effects in on-axis coupled linacs

2002· article· en· W2154118056 on OpenAlex
F.P. Adams, R. J. Burton, J. Ungrin

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldPhysics and Astronomy
TopicGyrotron and Vacuum Electronics Research
Canadian institutionsAtomic Energy (Canada)
Fundersnot available
KeywordsQuadrupoleCoupling (piping)PhysicsLinear particle acceleratorBeam (structure)Orientation (vector space)ElectronParticle acceleratorAccelerationNuclear physicsCathode rayQuadrupole magnetAtomic physicsComputational physicsOpticsNuclear magnetic resonanceClassical mechanicsGeometryEngineeringMechanical engineeringMathematics

Abstract

fetched live from OpenAlex

Elliptical beam shapes have been seen at the exit of a number of on-axis coupled electron linacs. These noncircular shapes have been attributed to the quadrupole effects produced by the coupling slots in the cell walls. Qualitative and detailed cavity calculations predict that the quadrupole effects cancel if the coupling slots are aligned across the accelerating cavities, as opposed to rotated through 90 degrees as has normally been the case. Two short S-band linacs, identical except for the orientation of the coupling slots, have been built to test the predictions. The results of detailed measurements of the beam profiles at the exit of the two linacs are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.705
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.002

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.

Opus teacher head0.017
GPT teacher head0.285
Teacher spread0.267 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Quick stats

Citations3
Published2002
Admission routes1
Has abstractyes

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