{"id":11601825,"identifier":"DVN/EMCEVC","persistentUrl":"https://doi.org/10.7910/DVN/EMCEVC","protocol":"doi","authority":"10.7910","separator":"/","publisher":"Harvard Dataverse","publicationDate":"2025-06-09","storageIdentifier":"s3://10.7910/DVN/EMCEVC","datasetType":"dataset","datasetVersion":{"id":446677,"datasetId":11601825,"datasetPersistentId":"doi:10.7910/DVN/EMCEVC","storageIdentifier":"s3://10.7910/DVN/EMCEVC","versionNumber":1,"versionMinorNumber":0,"versionState":"RELEASED","latestVersionPublishingState":"RELEASED","lastUpdateTime":"2025-06-09T12:00:50Z","releaseTime":"2025-06-09T12:00:50Z","createTime":"2025-06-07T16:06:33Z","publicationDate":"2025-06-09","citationDate":"2025-06-09","license":{"name":"CC0 1.0","uri":"http://creativecommons.org/publicdomain/zero/1.0","iconUri":"https://licensebuttons.net/p/zero/1.0/88x31.png","rightsIdentifier":"CC0-1.0","rightsIdentifierScheme":"SPDX","schemeUri":"https://spdx.org/licenses/","languageCode":"en"},"fileAccessRequest":true,"metadataBlocks":{"citation":{"displayName":"Citation Metadata","name":"citation","fields":[{"typeName":"title","multiple":false,"typeClass":"primitive","value":"Kinetic-ballooning-limited pedestals in spherical tokamak plasmas"},{"typeName":"author","multiple":true,"typeClass":"compound","value":[{"authorName":{"typeName":"authorName","multiple":false,"typeClass":"primitive","value":"Parisi, J.F.; Guttenfelder, W.; Nelson, A.O.; Gaur, R.; Kleiner, A.; Lampert, M.; Avdeeva, G.; Berkery, J.W.; Clauser, C.; Curie, M.; Diallo, A.; Dorland, W.; Kaye, S.M.; Mcclenaghan, J.; Parra, F.I."}}]},{"typeName":"datasetContact","multiple":true,"typeClass":"compound","value":[{"datasetContactEmail":{"typeName":"datasetContactEmail","multiple":false,"typeClass":"primitive","value":"jparisi@pppl.gov"}}]},{"typeName":"dsDescription","multiple":true,"typeClass":"compound","value":[{"dsDescriptionValue":{"typeName":"dsDescriptionValue","multiple":false,"typeClass":"primitive","value":"A theoretical model is presented that for the first time matches experimental measurements of the pedestal width-height Diallo scaling in the low-aspect-ratio high-β tokamak NSTX. Combining linear gyrokinetics with self-consistent pedestal equilibrium variation, kinetic-ballooning, rather than ideal-ballooning plasma instability, is shown to limit achievable confinement in spherical tokamak pedestals. Simulations are used to find the novel Gyrokinetic Critical Pedestal constraint, which determines the steepest pressure profile a pedestal can sustain subject to gyrokinetic instability. Gyrokinetic width-height scaling expressions for NSTX pedestals with varying density and temperature profiles are obtained. These scalings for STs depart significantly from that of conventional aspect ratio tokamaks."}}]},{"typeName":"subject","multiple":true,"typeClass":"controlledVocabulary","value":["Physics"]},{"typeName":"keyword","multiple":true,"typeClass":"compound","value":[{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"conventional aspect ratio tokamaks"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"gyrokinetic instability"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"ideal-ballooning plasma instability"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"kinetic-ballooning-limited pedestals"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"linear gyrokinetics"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"low-aspect-ratio high- β tokamak NSTX"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"novel Gyrokinetic Critical Pedestal constraint"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"NSTX pedestals"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"pedestal width-height Diallo scaling"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"self-consistent pedestal equilibrium variation"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"spherical tokamak pedestals"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"spherical tokamak plasmas"}},{"keywordValue":{"typeName":"keywordValue","multiple":false,"typeClass":"primitive","value":"width-height scaling expressions"}}]},{"typeName":"notesText","multiple":false,"typeClass":"primitive","value":"<a href=\"http://library.psfc.mit.edu/catalog/reports/2020/24ja/24ja126/abstract.php\">PSFC REPORT PSFC/JA-24-126</a><br /><br />This work was supported by the U.S. Department of Energy under Contract Numbers DE-AC02-09CH11466, DE-SC0022270, DE-SC0022272, and the Department of Energy Early Career Research Program. The United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.<br /><br />If this record does not contain the full text, then the manuscript has been embargoed by the publisher thus restricting open access for 12 to 24 months after publication."}]}},"files":[{"description":"","label":"24ja126_archival_manuscript.pdf","restricted":false,"version":1,"datasetVersionId":446677,"dataFile":{"id":11601826,"persistentId":"","filename":"24ja126_archival_manuscript.pdf","contentType":"application/pdf","friendlyType":"Adobe PDF","filesize":3358500,"description":"","storageIdentifier":"s3://dvn-cloud:1974b24f795-3a71d4e3d3a8","rootDataFileId":-1,"md5":"fdc532b975398c66aff1f96a2fad5c83","checksum":{"type":"MD5","value":"fdc532b975398c66aff1f96a2fad5c83"},"tabularData":false,"creationDate":"2025-06-07","publicationDate":"2025-06-09","fileAccessRequest":true}}],"citation":"Parisi, J.F.; Guttenfelder, W.; Nelson, A.O.; Gaur, R.; Kleiner, A.; Lampert, M.; Avdeeva, G.; Berkery, J.W.; Clauser, C.; Curie, M.; Diallo, A.; Dorland, W.; Kaye, S.M.; Mcclenaghan, J.; Parra, F.I., 2025, \"Kinetic-ballooning-limited pedestals in spherical tokamak plasmas\", https://doi.org/10.7910/DVN/EMCEVC, Harvard Dataverse, V1"}}