International Radiation Damage Tests in Fusion Materials: the Oak Ridge and BEATRIX Exchange Schemes
Bibliographic record
Abstract
A NUMBER OF R & D PROJECTS RELATED TO FUSION ENERGY HAVE BEEN LAUNCHED UNDER THE AUSPICES OF THE INTERNATIONAL ENERGY AGENCY. ANNEX II OF THE "IMPLEMENTING AGREEMENT FOR A PROGRAMME OF RESEARCH AND DEVELOPMENT ON RADIATION DAMAGE IN FUSION MATERIALS" ASSIGNS THE ROLE OF THE OPERATING AGENT TO THE EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM) FOR TWO LARGE SERIES OF IRRADIATIONS IN FISSION REACTORS. - THE SO CALLED "OAK RIDGE TEST MATRIX" (ORTM), NAMED AFTER ITS 1981 PLACE OF BIRTH, COVERING A VARIETY OF IN-PILE TESTS IN TWO US AND THREE EUROPEAN THERMAL MATERIALS TESTING REACTORS ON CANDIDATE FIRST WALL AUSTENITIC STEEL SPECIMENS. - THE BREEDER EXPERIMENT MATRIX (BEATRIX), INTRODUCED IN 1983, CONCERNING SOLID BREEDER MATERIAL IRRADIATION TESTING IN ONE JAPANESE, ONE CANADIAN, AND THREE EUROPEAN THERMAL TEST REACTORS, AS WELL AS IN AN US EXPERIMENTAL FAST BREEDER REACTOR. BOTH SCHEMES DEFINE ABOUT 20 TESTS EACH, THE NUMBER OF LABORATORIES INVOLVED IS SEVEN FOR THE OAK RIDGE AND 11 FOR THE BEATRIX TEST MATRIX. DURING THE SIX AND FOUR YEARS, RESPECTIVELY, OF OPERATION, THE INDIVIDUAL SCHEDULES DRIFTED APART. A) UNDER THE ORTM FIRST RESULTS BECAME AVAILABLE BY THE END OF 1982 AND THE LAST REPORTS MIGHT NOT COME BEFORE THE END OF 1990. B) FIRST BEATRIX RESULTS WERE PUBLISHED IN SEPTEMBER 1986, AND THE LAST ONES OF THE PRESENT TEST MATRIX WILL ALSO BE AVAILABLE BY THE END OF 1990. THE (POSTER) PAPER UPDATES THE PRESENT STATUS OF BOTH SCHEMES AND INDICATES POSSIBLE FUTURE PROSPECTS
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 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 | 0.018 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.003 | 0.002 |
| Open science | 0.003 | 0.003 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.009 | 0.002 |
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.
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".