{"id":"W2017561882","doi":"10.1118/1.1998539","title":"WE‐D‐I‐6B‐03: The Role of Secondary Photons in the Quantum Absorption Efficiency of Megavoltage X‐Ray Detectors: Is Dmax the Ideal X‐Ray Converter Thickness?","year":2005,"lang":"en","type":"article","venue":"Medical Physics","topic":"Radiation Dose and Imaging","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"London Health Sciences Centre; Robarts Clinical Trials","funders":"","keywords":"Phosphor; Photon; Optics; Absorption (acoustics); Detector; Materials science; Monte Carlo method; X-ray detector; Photon energy; Electron; Physics; Optoelectronics; Nuclear physics; Mathematics; Statistics","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001190353,0.0003483652,0.0003961284,0.0002591345,0.0001887751,0.0008879221,0.0007317344,0.0005540687,0.001721525],"category_scores_gemma":[0.00276334,0.0003361384,0.0002357844,0.0003585491,0.000420381,0.0007643018,0.0003673631,0.0004256749,0.0003155404],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0008125439,"about_ca_system_score_gemma":0.0004517602,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001276137,"about_ca_topic_score_gemma":0.0009021913,"domain_scores_codex":[0.9996542,0.00008626987,0.00001260432,0.00004533284,0.0001635736,0.0000379714],"domain_scores_gemma":[0.9988869,0.0005690055,0.0001839551,0.000115721,0.0001883204,0.00005601633],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.002394054,0.0002875419,0.05420807,0.001166889,0.0001958012,0.0007245325,0.0003597355,0.1984603,0.6872247,0.009596427,0.001515285,0.04386678],"study_design_scores_gemma":[0.00004654102,0.0003353569,0.01520217,0.00005125571,0.00006351632,0.0004555984,0.00008532972,0.1259515,0.8546388,0.0006808262,0.002456463,0.00003256582],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9710062,0.002011485,0.02157113,0.0001918643,0.00002098923,0.00003195967,0.0002446474,0.0003005749,0.004621179],"genre_scores_gemma":[0.9893991,0.0003177989,0.009279716,0.00002759467,0.000002443942,0.00001380249,0.0001201707,0.00009810957,0.0007413199],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001721525,"threshold_uncertainty_score":0.006295264,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.009596863482035388,"score_gpt":0.2560640942257277,"score_spread":0.2464672307436923,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}