{"created":"2023-06-20T15:16:45.439501+00:00","id":10469,"links":{},"metadata":{"_buckets":{"deposit":"5a4aa8ee-60e5-4f3d-b8c4-aed1bb77aa10"},"_deposit":{"created_by":3,"id":"10469","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"10469"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00010469","sets":["8:32"]},"author_link":["66113","66114","66115","66116","66112"],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999-02-01","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{},{"bibliographic_title":"Research Report NIFS-Series","bibliographic_titleLang":"en"}]}]},"item_5_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"\"Roles of bumpy field on collisionless particle confinement in helica1-axis heliotrons are investigated with the model magnetic field and particle orbit calculations in the Boozer coordinates. The mod-B_min contours can be shifted in the major radius direction with the control of the bumpy field, where B_min is the minimum value of |B| in the toroidal direction within one field period. The area of closed mod-B_min contours is a useful measure to evaluate global collisionless particle confinement as long as the mod-B_min contours connect toroidally. Negative value of ratio between the bumpy and the helicity components contributes to obtain the largest area of closed mod-B_min contours for finite ratio between the toroidicity and the helicity components. The radial variation of the bumpy field attributes to realize a toroidally localized mod-B_min Structure, which is significantly effective to improve collisionless particle confinement.\"","subitem_description_type":"Abstract"}]},"item_5_source_id_10":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-633X","subitem_source_identifier_type":"ISSN"}]},"item_5_text_8":{"attribute_name":"報告書番号","attribute_value_mlt":[{"subitem_text_value":"NIFS-583"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"\"Yokoyama,  M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakajima,  N.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Okamoto,  M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakamura,  Y.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Wakatani,  M.\"","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"bumpy field","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"collisionless particle","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"mod-B_min contour","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"helical-axis heliotoron","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"Roles of Bumpy Field on Collisionless Particle Confinement in Helical-Axis Heliotrons","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Roles of Bumpy Field on Collisionless Particle Confinement in Helical-Axis Heliotrons","subitem_title_language":"en"}]},"item_type_id":"5","owner":"3","path":["32"],"pubdate":{"attribute_name":"公開日","attribute_value":"2010-02-05"},"publish_date":"2010-02-05","publish_status":"0","recid":"10469","relation_version_is_last":true,"title":["Roles of Bumpy Field on Collisionless Particle Confinement in Helical-Axis Heliotrons"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T20:49:36.841919+00:00"}