{"id":"W4410977617","doi":"10.1016/j.nimb.2025.165763","title":"Survey of naturally occurring 236U with direct-AMS","year":2025,"lang":"en","type":"article","venue":"Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms","topic":"Radioactive contamination and transfer","field":"Environmental Science","cited_by":1,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Ottawa","funders":"Natural Science Foundation of Beijing Municipality; Beijing Normal University; University of Ottawa","keywords":"Survey research; Business","routes":{"ca_aff":true,"ca_fund":true,"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":[0.0004555508,0.0006905648,0.0005029404,0.00217009,0.0008491412,0.0009727468,0.0008902785,0.0005798725,0.002476058],"category_scores_gemma":[0.0008404324,0.0003170841,0.0004541776,0.001243839,0.0005913585,0.0003733248,0.0007879137,0.0003594295,0.001331609],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004514967,"about_ca_system_score_gemma":0.0006187665,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002049828,"about_ca_topic_score_gemma":0.003362331,"domain_scores_codex":[0.999166,0.00007282985,0.00002967431,0.0002930347,0.0003480175,0.00009041306],"domain_scores_gemma":[0.9995029,0.00005635446,0.0001125287,0.00005109762,0.0002243209,0.00005284387],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.001562187,0.0001401106,0.1794247,0.0005145321,0.0002949197,0.001208686,0.00073089,0.0004730761,0.7595019,0.000856072,0.0008519416,0.05444095],"study_design_scores_gemma":[0.00009945792,0.001591754,0.3417239,0.0001443558,0.000500337,0.009651987,0.001703908,0.003413507,0.5571508,0.00112838,0.08280943,0.00008223442],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9809646,0.003328936,0.006672024,0.00006539089,0.00007760467,0.00004320866,0.001916262,0.000230888,0.006701004],"genre_scores_gemma":[0.9827204,0.001785791,0.008112536,0.00007757649,0.00007624591,0.00003810742,0.001842476,0.00008227756,0.005264443],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002476058,"threshold_uncertainty_score":0.008283257,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03642719848379938,"score_gpt":0.3927613123856658,"score_spread":0.3563341139018664,"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."}}