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Record W1655769419 · doi:10.1063/1.1593888

Flow of Magnetized Plasma in a Linear Device

2003· article· en· W1655769419 on OpenAlexaboutno aff
G. Fußmann

Bibliographic record

VenueAIP conference proceedings · 2003
Typearticle
Languageen
FieldPhysics and Astronomy
TopicMagnetic confinement fusion research
Canadian institutionsnot available
Fundersnot available
KeywordsMach numberPlasmaSupersonic speedMagnetic fieldChoked flowNozzleMechanicsPhysicsFlow (mathematics)IonizationAtomic physicsIonNuclear physicsThermodynamics

Abstract

fetched live from OpenAlex

Streaming of the magnetized plasma produced in the stationary plasma generator PSI‐2 has been investigated by means of a Mach probe. We noticed that the streaming can be strongly influenced by changing the magnetic configuration in this region. The Mach numbers measured, however, are in the range of 0.05–0.2 only, i.e. far below supersonic flow. There are some analogies to the flow of a gas in a Laval nozzle. However, in the magnetized plasma, the Bohm criterion at the neutralizer plate should impose a special boundary condition and force a transition to supersonic flow at the region of maximum magnetic field strength. The experimental results (M << 1) appear therefore to be in disagreement with Bohm’s criterion, but further measurements — immediately in front of the neutralize plate — are required to exclude the influence of ionization in the considered region.

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.

How this classification was reachedexpand

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 categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.463
Threshold uncertainty score0.921

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)0.0800.000

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.

Opus teacher head0.022
GPT teacher head0.268
Teacher spread0.246 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations3
Published2003
Admission routes1
Has abstractyes

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