WEKO3
アイテム
{"_buckets": {"deposit": "82ce29e8-8459-42de-be6e-b42e9eeb7786"}, "_deposit": {"created_by": 1, "id": "76281", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "76281"}, "status": "published"}, "_oai": {"id": "oai:repo.qst.go.jp:00076281", "sets": ["28"]}, "author_link": ["769085", "769082", "769084", "769083", "769086", "769087"], "item_10005_date_7": {"attribute_name": "発表年月日", "attribute_value_mlt": [{"subitem_date_issued_datetime": "2019-07-12", "subitem_date_issued_type": "Issued"}]}, "item_10005_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "In this study, we analyzed the structure generation of the edge radial current (jr) by means of Poisson’s equation with a measured Er data (CXRS diagnostic) in JT-60U NBI heating plasmas [1-4]. About 200 ms after the start of NBI heating, a slow L-H transition takes place, which evolves into a fully-developed H-mode spending a few 100ms. During this slow transition process, a smooth decrease in Dα emission, increase in the edge line-averaged electron density and steepening of ion temperature take place. The Er-well bottom value at ~3 cm inside the LCFS becomes large up to -40 kV/m as a similar time-scale of the change in the density [5], while the jr shows a local Max. value of 0.01-0.02 A/m2 just after a slow L-H transition and its broader radial structure propagates toward plasma core region in the time-scale of ~100ms as seen in the pedestal development. On the other hand, we found that a localized jr structure with positive or negative polarities of its absolute peak value of 0.4-0.5 A/m2 occurred spontaneously during the later ELM-free H-phase at which a complex multi-stage Er-transition was seen with a fast time-scale. This observation suggests a co-existence of the non-linear physical mechanism for the jr generation at the plasma edge region in terms of its variation in the time-scale and radial structure. Comparison with a theoretical model, including fast-ion loss current due to the ripple loss effect, is also discussed.", "subitem_description_type": "Abstract"}]}, "item_10005_description_6": {"attribute_name": "会議概要(会議名, 開催地, 会期, 主催者等)", "attribute_value_mlt": [{"subitem_description": "46th EPS Conference on Plasma Physics", "subitem_description_type": "Other"}]}, "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": "Kamiya, Kensaku"}], "nameIdentifiers": [{"nameIdentifier": "769082", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Itoh, Kimitaka"}], "nameIdentifiers": [{"nameIdentifier": "769083", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sanae-I, Itoh"}], "nameIdentifiers": [{"nameIdentifier": "769084", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Honda, Mitsuru"}], "nameIdentifiers": [{"nameIdentifier": "769085", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kamiya, Kensaku", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "769086", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Honda, Mitsuru", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "769087", "nameIdentifierScheme": "WEKO"}]}]}, "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": "conference object", "resourceuri": "http://purl.org/coar/resource_type/c_c94f"}]}, "item_title": "Structure generation of the edge radial current during the L-H transition on JT-60U", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Structure generation of the edge radial current during the L-H transition on JT-60U"}]}, "item_type_id": "10005", "owner": "1", "path": ["28"], "permalink_uri": "https://repo.qst.go.jp/records/76281", "pubdate": {"attribute_name": "公開日", "attribute_value": "2019-07-16"}, "publish_date": "2019-07-16", "publish_status": "0", "recid": "76281", "relation": {}, "relation_version_is_last": true, "title": ["Structure generation of the edge radial current during the L-H transition on JT-60U"], "weko_shared_id": -1}
Structure generation of the edge radial current during the L-H transition on JT-60U
https://repo.qst.go.jp/records/76281
https://repo.qst.go.jp/records/76281b258ed4a-0d93-4c5e-bd43-abc79afc6745
Item type | 会議発表用資料 / Presentation(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2019-07-16 | |||||
タイトル | ||||||
タイトル | Structure generation of the edge radial current during the L-H transition on JT-60U | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
資源タイプ | conference object | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kamiya, Kensaku
× Kamiya, Kensaku× Itoh, Kimitaka× Sanae-I, Itoh× Honda, Mitsuru× Kamiya, Kensaku× Honda, Mitsuru |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this study, we analyzed the structure generation of the edge radial current (jr) by means of Poisson’s equation with a measured Er data (CXRS diagnostic) in JT-60U NBI heating plasmas [1-4]. About 200 ms after the start of NBI heating, a slow L-H transition takes place, which evolves into a fully-developed H-mode spending a few 100ms. During this slow transition process, a smooth decrease in Dα emission, increase in the edge line-averaged electron density and steepening of ion temperature take place. The Er-well bottom value at ~3 cm inside the LCFS becomes large up to -40 kV/m as a similar time-scale of the change in the density [5], while the jr shows a local Max. value of 0.01-0.02 A/m2 just after a slow L-H transition and its broader radial structure propagates toward plasma core region in the time-scale of ~100ms as seen in the pedestal development. On the other hand, we found that a localized jr structure with positive or negative polarities of its absolute peak value of 0.4-0.5 A/m2 occurred spontaneously during the later ELM-free H-phase at which a complex multi-stage Er-transition was seen with a fast time-scale. This observation suggests a co-existence of the non-linear physical mechanism for the jr generation at the plasma edge region in terms of its variation in the time-scale and radial structure. Comparison with a theoretical model, including fast-ion loss current due to the ripple loss effect, is also discussed. | |||||
会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 46th EPS Conference on Plasma Physics | |||||
発表年月日 | ||||||
日付 | 2019-07-12 | |||||
日付タイプ | Issued |