High sensitivity lithium fluoride as a detector for environmental dosimetry
Bibliographic record
Abstract
A new thermoluminescence dosimetry system for environmental applications was tested, which used high sensitivity lithium fluoride (TLD-100H). The energy response of the bare thermoluminescence dosimeters (TLDs) was measured for photon beams with mean energies from 24 keV to 1.1 MeV, and the results were compared with standard lithium fluoride (TLD-100). The energy response was also measured for TLD-100H card-mounted dosimeters encapsulated in Teflon RTM, used as part of the Harshaw Type 8855 environmental dosimeter. The EGSnrc Monte Carlo system was used to calculate the dose to the TLDs in both the bare chip holder and the 8855 dosimeter, in order to calculate the thermoluminescence per unit of absorbed dose to the TLDs. The results were broadly consistent with existing data, with the response of both TLD materials correlating with the ionization density of the photon beams.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 0.003 |
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".