{"id":"https://openalex.org/W2017249573","doi":"https://doi.org/10.1088/0029-5515/31/5/006","title":"Locked modes in DIII-D and a method for prevention of the low density mode","display_name":"Locked modes in DIII-D and a method for prevention of the low density mode","publication_year":1991,"publication_date":"1991-05-01","ids":{"openalex":"https://openalex.org/W2017249573","doi":"https://doi.org/10.1088/0029-5515/31/5/006","mag":"2017249573"},"language":"en","primary_location":{"id":"doi:10.1088/0029-5515/31/5/006","doi":"https://doi.org/10.1088/0029-5515/31/5/006","is_oa":true,"landing_page_url":"https://doi.org/10.1088/0029-5515/31/5/006","pdf_url":"https://iopscience.iop.org/article/10.1088/0029-5515/31/5/006/pdf","source":{"id":"https://openalex.org/S133992056","display_name":"Nuclear Fusion","issn_l":"0029-5515","issn":["0029-5515","1741-4326"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-b","jufo-2","ki-jl-1","norway-1","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nuclear Fusion","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://iopscience.iop.org/article/10.1088/0029-5515/31/5/006/pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5058355047","display_name":"John T. Scoville","orcid":"https://orcid.org/0000-0002-2884-7022","observed_orcids":["https://orcid.org/0000-0002-2884-7022"]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"J.T. Scoville","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108096620","display_name":"R.J. La Haye","orcid":"https://orcid.org/0009-0009-5979-4777","observed_orcids":["https://orcid.org/0009-0009-5979-4777"]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R.J. La Haye","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040929705","display_name":"A.G. Kellman","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"A.G. Kellman","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111419408","display_name":"T.H. Osborne","orcid":"https://orcid.org/0000-0003-2641-4597","observed_orcids":["https://orcid.org/0000-0003-2641-4597"]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"T.H. Osborne","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040086904","display_name":"Ronald D. Stambaugh","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R.D. Stambaugh","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091062314","display_name":"E. J. Strait","orcid":"https://orcid.org/0000-0001-9215-3757","observed_orcids":["https://orcid.org/0000-0001-9215-3757"]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E.J. Strait","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072589961","display_name":"T. S. Taylor","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I63533367","display_name":"General Atomics (United States)","ror":"https://ror.org/03ngjpk76","country_code":"US","type":"company","lineage":["https://openalex.org/I63533367"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"T.S. Taylor","raw_affiliation_strings":["General Atomics, San Diego, California, United States of America"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"General Atomics, San Diego, California, United States of America","institution_ids":["https://openalex.org/I63533367"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I63533367"],"apc_list":{"value":2595,"currency":"USD","value_usd":2595},"apc_paid":null,"fwci":9.2394,"has_fulltext":true,"cited_by_count":172,"citation_normalized_percentile":{"value":0.98339719,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":99},"biblio":{"volume":"31","issue":"5","first_page":"875","last_page":"890"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10346","display_name":"Magnetic confinement fusion research","score":0.9940999746322632,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10346","display_name":"Magnetic confinement fusion research","score":0.9940999746322632,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13769","display_name":"Fusion and Plasma Physics Studies","score":0.0052999998442828655,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10781","display_name":"Low-Pressure Plasma Processing and Diagnostics","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/locked-modes","display_name":"locked modes","score":0.8019999861717224},{"id":"https://openalex.org/keywords/density-limit-disruption","display_name":"density limit disruption","score":0.7549999952316284},{"id":"https://openalex.org/keywords/diii-d-tokamak","display_name":"DIII-D tokamak","score":0.847000002861023},{"id":"https://openalex.org/keywords/field-errors","display_name":"field errors","score":0.5199999809265137},{"id":"https://openalex.org/keywords/vertical-field-coils","display_name":"vertical field coils","score":0.7739999890327454},{"id":"https://openalex.org/keywords/resonant-perturbations","display_name":"resonant perturbations","score":0.6019999980926514},{"id":"https://openalex.org/keywords/nonlinear-stability","display_name":"nonlinear stability","score":0.5630000233650208},{"id":"https://openalex.org/keywords/field-line-tracing","display_name":"field line tracing","score":0.8629999756813049}],"concepts":[{"id":"https://openalex.org/C2778495671","wikidata":"https://www.wikidata.org/wiki/Q5205113","display_name":"DIII-D","level":4,"score":0.8613981604576111},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.7894723415374756},{"id":"https://openalex.org/C116515362","wikidata":"https://www.wikidata.org/wiki/Q188589","display_name":"Tokamak","level":3,"score":0.6780642867088318},{"id":"https://openalex.org/C15001198","wikidata":"https://www.wikidata.org/wiki/Q3241394","display_name":"Toroid","level":3,"score":0.633667528629303},{"id":"https://openalex.org/C207821765","wikidata":"https://www.wikidata.org/wiki/Q405372","display_name":"Instability","level":2,"score":0.6287870407104492},{"id":"https://openalex.org/C177918212","wikidata":"https://www.wikidata.org/wiki/Q803623","display_name":"Perturbation (astronomy)","level":2,"score":0.5480157136917114},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.53590327501297},{"id":"https://openalex.org/C30403606","wikidata":"https://www.wikidata.org/wiki/Q2981904","display_name":"Electromagnetic coil","level":2,"score":0.5207640528678894},{"id":"https://openalex.org/C82706917","wikidata":"https://www.wikidata.org/wiki/Q10251","display_name":"Plasma","level":2,"score":0.48684877157211304},{"id":"https://openalex.org/C2776097996","wikidata":"https://www.wikidata.org/wiki/Q2219270","display_name":"Tearing","level":2,"score":0.4539094865322113},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.4333692193031311},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.41363605856895447},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.4030539393424988},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.3034239411354065},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.08298438787460327},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.07425424456596375},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1088/0029-5515/31/5/006","doi":"https://doi.org/10.1088/0029-5515/31/5/006","is_oa":true,"landing_page_url":"https://doi.org/10.1088/0029-5515/31/5/006","pdf_url":"https://iopscience.iop.org/article/10.1088/0029-5515/31/5/006/pdf","source":{"id":"https://openalex.org/S133992056","display_name":"Nuclear Fusion","issn_l":"0029-5515","issn":["0029-5515","1741-4326"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-b","jufo-2","ki-jl-1","norway-1","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nuclear Fusion","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1088/0029-5515/31/5/006","doi":"https://doi.org/10.1088/0029-5515/31/5/006","is_oa":true,"landing_page_url":"https://doi.org/10.1088/0029-5515/31/5/006","pdf_url":"https://iopscience.iop.org/article/10.1088/0029-5515/31/5/006/pdf","source":{"id":"https://openalex.org/S133992056","display_name":"Nuclear Fusion","issn_l":"0029-5515","issn":["0029-5515","1741-4326"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-b","jufo-2","ki-jl-1","norway-1","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nuclear Fusion","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G1398330795","display_name":null,"funder_award_id":"DE-AC03-?","funder_id":"https://openalex.org/F4320306084","funder_display_name":"U.S. Department of Energy"}],"funders":[{"id":"https://openalex.org/F4320306084","display_name":"U.S. Department of Energy","ror":"https://ror.org/01bj3aw27"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2017249573.pdf","grobid_xml":"https://content.openalex.org/works/W2017249573.grobid-xml"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W1971017693","https://openalex.org/W1982052813","https://openalex.org/W1987325485","https://openalex.org/W1987520619","https://openalex.org/W1998332559","https://openalex.org/W2003207868","https://openalex.org/W2005643846","https://openalex.org/W2015779586","https://openalex.org/W2020357808","https://openalex.org/W2021362599","https://openalex.org/W2024811132","https://openalex.org/W2029416864","https://openalex.org/W2029646443","https://openalex.org/W2039387703","https://openalex.org/W2044469153","https://openalex.org/W2045513573","https://openalex.org/W2057627669","https://openalex.org/W2063708452","https://openalex.org/W2072883196","https://openalex.org/W2079956239","https://openalex.org/W2081965316","https://openalex.org/W2119078411","https://openalex.org/W2120062331","https://openalex.org/W2139883813","https://openalex.org/W2299643982","https://openalex.org/W2928276344","https://openalex.org/W3016843226"],"related_works":["https://openalex.org/W2041223215","https://openalex.org/W2624767479","https://openalex.org/W2744533899","https://openalex.org/W1520657756","https://openalex.org/W2079956239","https://openalex.org/W2075893897","https://openalex.org/W1994303501","https://openalex.org/W2031313160","https://openalex.org/W3089690876","https://openalex.org/W3169918063"],"abstract_inverted_index":{"Locked":[0],"n":[1,92],"=":[2,93,199],"1":[3,94,200],"tearing":[4,160],"modes":[5,32,57,109],"are":[6,35,58,146,203],"observed":[7,37],"over":[8],"a":[9,47,61,119,159,172,180],"wide":[10],"range":[11],"of":[12,21,40,46,72,76,107,134,154,158,165,179,193],"parameter":[13,126],"space":[14],"in":[15,69,110,204],"DIII-D":[16],"and":[17,33,132,139,197],"other":[18],"tokamaks.":[19],"Much":[20],"the":[22,56,70,77,84,105,130,135,155,163,177,208],"difficulty":[23],"with":[24,81,96,207],"low":[25,111,113],"density":[26,41,114],"operation":[27],"is":[28,118],"attributed":[29],"to":[30,60,83,103],"locked":[31,49,108,181],"they":[34],"also":[36],"as":[38],"precursors":[39],"limit":[42],"disruptions.":[43],"From":[44],"observations":[45],"consistent":[48],"mode":[50,161],"toroidal":[51,85],"phase,":[52],"it":[53,100],"appears":[54],"that":[55],"locking":[59],"small":[62],"field":[63,79,86,95,144,169,188,195],"perturbation":[64,137],"caused":[65],"by":[66,187],"slight":[67],"irregularities":[68],"location":[71],"one":[73],"or":[74,122,141,148],"more":[75],"vertical":[78],"coils":[80],"respect":[82],"coil.":[87],"By":[88],"intentionally":[89],"producing":[90],"an":[91,97],"external":[98,136],"coil,":[99],"was":[101],"possible":[102],"influence":[104],"onset":[106,178],"q,":[112],"plasmas.":[115],"The":[116,183],"result":[117],"significantly":[120],"expanded":[121],"reduced":[123,147],"stable":[124],"operating":[125],"space,":[127],"depending":[128],"on":[129],"polarity":[131],"magnitude":[133],"applied":[138,167],"whether":[140],"not":[142],"intrinsic":[143,194],"errors":[145,196],"increased.":[149],"A":[150],"simple":[151],"theoretical":[152],"model":[153],"non-linear":[156],"stability":[157],"under":[162],"effect":[164],"externally":[166],"resonant":[168],"perturbations":[170],"yields":[171],"critical":[173,209],"island":[174,184,210],"width":[175,211],"for":[176,191,212],"mode.":[182],"widths,":[185],"computed":[186],"line":[189],"tracing,":[190],"combinations":[192],"'n":[198],"coil'":[201],"fields":[202],"qualitative":[205],"agreement":[206],"instability.":[213]},"counts_by_year":[{"year":2026,"cited_by_count":6},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":9},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":7},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":9},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":3}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2016-06-24T00:00:00"}
