{"created":"2023-06-20T15:17:37.059797+00:00","id":11544,"links":{},"metadata":{"_buckets":{"deposit":"95bf6ca0-9ee7-4610-baec-745d361e92c7"},"_deposit":{"created_by":20,"id":"11544","owners":[20],"pid":{"revision_id":0,"type":"depid","value":"11544"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00011544","sets":["6:7"]},"author_link":["66532","127575","127533","127534","127577","127127","127785","126503","127535","66536","127880","127578","127881","127576","66533","127532","127882","66893","127313","127867"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-03-04","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageStart":"35001","bibliographicVolumeNumber":"129","bibliographic_titles":[{"bibliographic_title":" Europhysics Letters"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The transition of trapped-particle orbit topologies has been investigated in quasi-axisymmetric (QA) configurations, such as the Chinese First Quasi-axisymmetric Stellarator (CFQS). It is found that the axisymmetry-breaking phenomenon in QA configurations is of great significance at some specific locations, which could easily induce blocked particles to transit into localized particles. A novel aspect is presented to interpret the transition mechanism of trapped-particle orbit topologies in this paper, i.e., as the amplitudes of non-axisymmetric field increase along the radius direction, the region of large toroidal inhomogeneity is gradually generated, which makes the length of the trapped-particle trajectory substantially short, and hence, may restrict particles to a single helical field period. Meanwhile, at such locations the \"pseudo-axisymmetric\" field results in coupling of the maximum radial drift and the minimum poloidal drift, which enables the transition of trapped-particle orbit topologies considerably and forms specific loss channels, degrading plasma confinement. These results may shed light on the optimization of QA configurations via avoidance of such coupling with respect to energetic particle confinement. Moreover, this work is also relevant to the generation of inhomogeneity of particle flux deposition on the devertor plates.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":" IOP Publishing "},{"subitem_publisher":" European Physical Society "},{"subitem_publisher":"Società Italiana di Fisica "},{"subitem_publisher":"EDP Sciences "},{"subitem_publisher":"EPL Association"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1209/0295-5075/129/35001","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Lang Yang et al 2020 EPL 129 35001"}]}]},"item_10001_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher version"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1209/0295-5075/129/35001","subitem_relation_type_select":"DOI"}}]},"item_10001_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"This is the Accepted Manuscript version of an article accepted for publication in Europhysics Letters. "},{"subitem_rights":"IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. "},{"subitem_rights":"The Version of Record is available online at https://doi.org/10.1209/0295-5075/129/35001. 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