{"id":"W2158908778","doi":"10.1063/1.2918333","title":"Plasma-sheath instability in Hall thrusters due to periodic modulation of the energy of secondary electrons in cyclotron motion","year":2008,"lang":"en","type":"article","venue":"Physics of Plasmas","topic":"Plasma Diagnostics and Applications","field":"Engineering","cited_by":59,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Saskatchewan","funders":"Fusion Energy Sciences; Office of Science; Air Force Office of Scientific Research; Western Canada Research Grid","keywords":"Physics; Atomic physics; Plasma; Instability; Electron; Cyclotron; Plasma channel; Secondary emission; Debye sheath; Two-stream instability; Beam (structure); Mechanics; Optics; Nuclear physics","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":[0.0001795186,0.0001644493,0.0002266002,0.0002665833,0.0003723985,0.0005484949,0.0002894668,0.0004299683,0.001174889],"category_scores_gemma":[0.0005505626,0.0001839011,0.0002342613,0.0002459761,0.0006529347,0.0003070216,0.0003175951,0.0002413345,0.0000791357],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005079756,"about_ca_system_score_gemma":0.000343356,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003778307,"about_ca_topic_score_gemma":0.002039826,"domain_scores_codex":[0.9999517,0.00001161717,0.000001796822,0.000005202432,0.00001100929,0.00001873359],"domain_scores_gemma":[0.9998698,0.00005369308,0.00002791422,0.000008429623,0.0000112511,0.00002891143],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0006009432,0.0000884595,0.01262414,0.00005679291,0.00005645056,0.0007821345,0.0003457749,0.9416853,0.03314749,0.006527735,0.0005901151,0.003494701],"study_design_scores_gemma":[0.00007828738,0.0000698248,0.002983388,0.00000244574,0.000007545589,0.00005354772,0.00006491434,0.9919841,0.00323853,0.001278957,0.0002301266,0.00000832944],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.994991,0.00005199265,0.003134019,0.00007081818,0.000007876344,0.000008148725,0.0000257494,0.00005787828,0.001652669],"genre_scores_gemma":[0.999268,0.00001912427,0.0003926881,0.000007735153,0.000002293907,0.000005023453,0.00001649019,0.000006951941,0.0002817751],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003778307,"threshold_uncertainty_score":0.007512629,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.009879179869238378,"score_gpt":0.192500009537683,"score_spread":0.1826208296684446,"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."}}