{"id":"W2555994597","doi":"10.1118/1.4967484","title":"Activity cross‐calibration of unsealed radionuclides utilizing a portable ion chamber","year":2016,"lang":"en","type":"article","venue":"Medical Physics","topic":"Radioactive Decay and Measurement Techniques","field":"Physics and Astronomy","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Alberta","funders":"","keywords":"Ionization chamber; Calibration; Monte Carlo method; Radionuclide; Nuclear medicine; Nuclear engineering; Electromagnetic shielding; Syringe; Dosimetry; Environmental science; Sensitivity (control systems); Linearity; Materials science; Ion; Nuclear physics; Physics; Radiochemistry; Chemistry; Medicine; Mathematics; Engineering; Statistics; Ionization","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003402622,0.0001255331,0.0002215345,0.00002191526,0.00006926044,0.00001607706,0.0001010057,0.00006141057,0.0005631814],"category_scores_gemma":[0.00003715016,0.00008586126,0.0001138604,0.0001166944,0.0001547522,0.0004079806,0.00002986321,0.0001165802,0.000006639051],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002541041,"about_ca_system_score_gemma":0.0001053675,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00006170008,"about_ca_topic_score_gemma":0.000001139649,"domain_scores_codex":[0.9988472,0.00005882126,0.0002083729,0.0002030647,0.0004782269,0.000204263],"domain_scores_gemma":[0.9993349,0.0001016868,0.0001521944,0.000210417,0.0000808562,0.0001199975],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0001819982,0.001107358,0.1912378,0.00006758309,0.0002198338,0.000005956171,0.0002384144,0.000004593409,0.2080813,0.06019386,0.002969613,0.5356917],"study_design_scores_gemma":[0.000715177,0.00005658294,0.00668835,0.0001426514,0.00001972965,6.056314e-7,0.00001219625,0.0002512945,0.9722248,0.01853811,0.001193892,0.0001565635],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.6047353,0.00001285438,0.3872258,0.0002005548,0.0001228507,0.0001517148,0.00001833217,0.0000632161,0.007469368],"genre_scores_gemma":[0.9991038,0.000008551923,0.00009288232,0.00003123385,0.0004837851,0.00002215626,0.000009215798,0.00001493351,0.0002333823],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.7641436,"threshold_uncertainty_score":0.6166441,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02913473025338332,"score_gpt":0.2975551092750315,"score_spread":0.2684203790216482,"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."}}