{"id":"W6944089339","doi":"10.17635/lancaster/thesis/2785","title":"Estimates of the local contribution to trace plutonium in soils from Blelham Tarn and Windermere","year":2025,"lang":"en","type":"article","venue":"Lancaster EPrints (Lancaster University)","topic":"Radioactive contamination and transfer","field":"Environmental Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Plutonium; Soil water; Americium; Accelerator mass spectrometry; Plutonium-240; Particulates; Isotopic ratio; Isotope; Sampling (signal processing)","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001406674,0.0003337055,0.0002372972,0.002200619,0.0007298336,0.0007795536,0.0004066613,0.0002504383,0.000994216],"category_scores_gemma":[0.00030486,0.0002356682,0.0001392235,0.001042588,0.0002887391,0.0002381922,0.0004756582,0.0001978357,0.0003257509],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009866924,"about_ca_system_score_gemma":0.000381081,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.03953272,"about_ca_topic_score_gemma":0.1716477,"domain_scores_codex":[0.9997552,0.00001335296,0.00001372913,0.00005992958,0.0001255804,0.00003224958],"domain_scores_gemma":[0.999833,0.00001439747,0.00005584749,0.000007719469,0.00006350659,0.00002547518],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001406761,0.00003989724,0.8354552,0.0001661957,0.00005250199,0.0004707893,0.001486569,0.0003493658,0.1323632,0.00005793721,0.00009717769,0.02932048],"study_design_scores_gemma":[0.000005834001,0.00007889162,0.9867175,0.00001189,0.00001780155,0.000280366,0.0007431278,0.0002763124,0.01047289,0.00001643343,0.001373952,0.000004951587],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.998296,0.0002342748,0.0003260468,0.000006583174,0.000001316704,0.00001613142,0.000297431,0.00001204073,0.0008102483],"genre_scores_gemma":[0.997007,0.0002262587,0.001210131,0.000009192072,0.000003678191,0.00002056816,0.0006203466,0.000008470298,0.0008944367],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03953272,"threshold_uncertainty_score":0.07860523,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003974180897281526,"score_gpt":0.1859158613405389,"score_spread":0.1819416804432574,"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."}}