Measurements of superficial dose distributions in radiation therapy using translucent cryogel dosimeters
Bibliographic record
Abstract
Superficial dose distributions were measured using radiochromic translucent poly(vinyl alcohol) cryogels. The relationship between dose to the skin surface and dose measured with the bolus (cryogel) was established using a series of oblique irradiations. Gafchromic film was placed under the bolus, and the ratio of bolus-film dose was determined for angle ranging from 0o to 90o. The average ratio over 0-67.5 degrees (0.800 ± 0.064) was used as the single correction factor to convert dose in bolus to dose to the skin surface, and applied to bolus measurements of skin dose from head and neck intensity modulated radiation therapy (IMRT) treatments delivered to a RANDO phantom. The resulting dose distributions were compared to film measurements using gamma analysis with a 3%/3mm tolerance and a 10% threshold. The minimum gamma pass rate was 95.2%. This study is the first report on the use of a poly(vinyl alcohol) cryogels based dosimeter to provide an accurate estimation of superficial dose distributions in megavoltage photon beams.
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 imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
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 teacher head, 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".