{"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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0004330685,0.0004487693,0.0009487226,0.0003940524,0.0001180276,0.0002751511,0.0002931046,0.0001662513,0.02082433],"category_scores_gemma":[0.00004124127,0.0003362875,0.00008249252,0.0006039885,0.00006755947,0.0004640031,0.0001495948,0.0002021607,0.00007165755],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00008787621,"about_ca_system_score_gemma":0.000644905,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004620743,"about_ca_topic_score_gemma":0.00003385455,"domain_scores_codex":[0.997112,0.00007119551,0.0009231512,0.000730994,0.0007935583,0.0003691103],"domain_scores_gemma":[0.9976808,0.00007948462,0.0007767459,0.0007049794,0.0005734549,0.0001845628],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.001691662,0.003302939,0.1175173,0.001612896,0.009145623,0.00004436571,0.001667378,0.03165979,0.3087521,0.02845265,0.4745516,0.0216017],"study_design_scores_gemma":[0.002453627,0.003110938,0.0151085,0.002543908,0.002705284,0.00003189989,0.001079709,0.00619533,0.9357992,0.003842179,0.02248855,0.00464091],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.4706875,0.0004416215,0.1983871,0.0008074836,0.000646373,0.005520748,0.001580545,0.0002664423,0.3216622],"genre_scores_gemma":[0.8586187,0.0007182456,0.0727102,0.00007341708,0.001018463,0.0002345979,0.003448028,0.0001656257,0.06301267],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.6270471,"threshold_uncertainty_score":0.9999089,"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."}}