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Record W2073471015 · doi:10.1117/12.689996

Canadian TeraWatt portable laser

2006· article· de· W2073471015 on OpenAlex
Marc Châteauneuf, Jacques Dubois

Classification

machine, unvalidated

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

Study designTheoretical or conceptual
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".

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.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.

Bibliographic record

VenueProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2006
Typearticle
Languagede
FieldPhysics and Astronomy
TopicGyrotron and Vacuum Electronics Research
Canadian institutionsDefence Research and Development Canada
Fundersnot available
KeywordsLaserFilamentationOpticsBeam (structure)Gas compressorPulse (music)Materials scienceComputer sciencePhysics

Abstract

fetched live from OpenAlex

Defence Research & Development Canada (DRDC) has recently acquired a Terawatt laser system that will be mounted in a portable container. A class 100,000 clean room will be inserted in the container to maintain the ideal conditions for the laser operation. The compact laser system stands on a 1.25m x 2.5m optical table. The pulse energy at the output of the compressor is higher than 250 mJ and the pulse width output beam lower than 50 fs resulting in a peak power greater than 5 TW. Although the laser system is portable which allows its deployment for test fields on multi-kilometer ranges, a special building will be constructed to efficiently use its capabilities. While the container will seat inside a garage, it will be possible to steer the laser beam toward a well confined 200 m exterior range, or toward a class 100,000 laboratory. The primary objectives of the use of this laser are to study the beam filamentation and the generation of high energy THz waves.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.779
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

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 head0.008
GPT teacher head0.231
Teacher spread0.223 · 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