{"id":"W59882262","doi":"10.1017/s0033822200053091","title":"Some Comments on Accelerator Mass Spectrometry","year":2000,"lang":"en","type":"article","venue":"Radiocarbon","topic":"X-ray Spectroscopy and Fluorescence Analysis","field":"Physics and Astronomy","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"University of Toronto","keywords":"Accelerator mass spectrometry; Radiocarbon dating; Mass spectrometry; Subject (documents); Chemistry; Computer science; History; Archaeology; Library science; Chromatography","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":[0.007537532,0.002232969,0.001167077,0.002690388,0.004670459,0.003695474,0.003383938,0.01105953,0.03062133],"category_scores_gemma":[0.02564664,0.000853957,0.002936081,0.00287974,0.00301942,0.006907102,0.002380389,0.01869082,0.02619736],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.003471395,"about_ca_system_score_gemma":0.002567668,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.007281304,"about_ca_topic_score_gemma":0.008095844,"domain_scores_codex":[0.9941635,0.001072267,0.0006511618,0.0006270196,0.003145962,0.0003402661],"domain_scores_gemma":[0.9824372,0.006084702,0.0007893686,0.0006567625,0.008886729,0.001145188],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00005285376,0.00001804997,0.0001831032,0.0002677859,0.0000150341,0.000298512,0.000102309,0.00008131211,0.0004996149,0.004051082,0.9834003,0.01102997],"study_design_scores_gemma":[0.000007123677,0.0000157545,0.0002772446,0.0001247787,0.000005074368,0.0001950701,0.00006768406,0.00002044043,0.0001954661,0.002101355,0.9969726,0.00001750414],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"commentary","genre_gemma":"commentary","genre_scores_codex":[0.0003026962,0.04434391,0.002042749,0.6054212,0.3271815,0.00005706479,0.0004701367,0.0002378439,0.01994284],"genre_scores_gemma":[0.003160768,0.03991473,0.003932917,0.6543284,0.174381,0.00009016873,0.0004679153,0.0004095543,0.1233145],"genre_candidate":"commentary","genre_consensus":"commentary","teacher_disagreement_score":0.03062133,"threshold_uncertainty_score":0.1024385,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007672204129313808,"score_gpt":0.2424056233222521,"score_spread":0.2347334191929383,"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."}}