{"created":"2023-06-20T15:16:02.017634+00:00","id":9682,"links":{},"metadata":{"_buckets":{"deposit":"7e69f9d3-b586-42af-817c-25197c11a27d"},"_deposit":{"created_by":3,"id":"9682","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9682"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00009682","sets":["8:32"]},"author_link":["69505","69503","69502","69509","69507","69494","69501","69506","69511","69500","69515","69487","69488","69508","69512","69514","69504","69489","69490","69499","69495","69498","69510","69486","69492","69493","69513","69497","69496","69491"],"item_5_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1998-10-01","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":"A high ion temperature mode (high T_i mode) is observed for neutral beam heated plasmas in the Compact Helical System (CHS) Heliotron/torsatron. The high T_i mode plasma is characterized by a high central ion temperature, T_i(0), and is associated with a peaked electron density profile produced by neutral beam fueling with low wall recycling. Transition from L mode to high T_i mode has been studied in CHS. The central ion temperature in the high T_i mode discharges reaches to 1 keV which is 2.5 times higher than that in the L mode discharges. The ion thermal diffusivity is significantly reduced by a factor of more than 2 - 3 in the high T_i mode plasma. The ion loss cone is observed in neutral particle flux in the energy range of 1 - 6 keV with a narrow range of pitch angle (90 pm 10 degree) in the high T_i mode. However, the degradation of ion energy confinement due to thls loss cone is negligible.","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-567"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ida,  K.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Osakabe,  M.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka,  K.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Minami,  T.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nishimura,  S.","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Okamura,  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Plasmas","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Transition from L Mode to High Ion Temperature Mode in CHS Heliotron/Torsatron Plasmas","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":"9682","relation_version_is_last":true,"title":["Transition from L Mode to High Ion Temperature Mode in CHS Heliotron/Torsatron Plasmas"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-20T20:43:40.931234+00:00"}