{"id":"W2805786770","doi":"10.4095/292677","title":"Portable XRF spectrometry of reference materials with respect to precision, accuracy, instrument drift, dwell time optimization, and calibration","year":2013,"lang":"en","type":"report","venue":"","topic":"X-ray Spectroscopy and Fluorescence Analysis","field":"Physics and Astronomy","cited_by":6,"is_retracted":false,"has_abstract":false,"ca_institutions":"Natural Resources Canada","funders":"","keywords":"Calibration; Dwell time; Mass spectrometry; Accuracy and precision; Measuring instrument; Computer science; Remote sensing; Chemistry; Physics; Chromatography; Geology","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":[0.004631465,0.001842349,0.0017782,0.002716096,0.001972768,0.001800851,0.003760709,0.001812072,0.008323674],"category_scores_gemma":[0.01109499,0.001048005,0.0009451286,0.002615219,0.0008900465,0.001647346,0.001200903,0.001678667,0.00350917],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001054555,"about_ca_system_score_gemma":0.002276761,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002206787,"about_ca_topic_score_gemma":0.004361695,"domain_scores_codex":[0.9937131,0.0007252386,0.0003269633,0.001915387,0.003126839,0.0001924547],"domain_scores_gemma":[0.9925745,0.001285623,0.0006687106,0.002769712,0.002586598,0.0001148468],"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":[0.0005609316,0.0002485857,0.003803932,0.0005191609,0.0001035865,0.0002038562,0.0002664871,0.001087677,0.8270973,0.002032113,0.008011755,0.1560646],"study_design_scores_gemma":[0.00007534998,0.0003863263,0.006519869,0.00007832221,0.000166547,0.001925687,0.00009515995,0.004415147,0.956794,0.0008517934,0.0286328,0.00005902207],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.1814873,0.003624453,0.7811506,0.0005226519,0.000685171,0.001014144,0.003830486,0.01201935,0.01566583],"genre_scores_gemma":[0.2314283,0.003345708,0.7174056,0.0004704884,0.0002132314,0.001264658,0.006699191,0.003120337,0.03605251],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.008323674,"threshold_uncertainty_score":0.02784544,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0146369682346669,"score_gpt":0.2632152887986011,"score_spread":0.2485783205639342,"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."}}