{"created":"2023-06-20T15:17:22.071234+00:00","id":11239,"links":{},"metadata":{"_buckets":{"deposit":"c7c71948-88b0-45e6-9efe-eba2de9f1fed"},"_deposit":{"created_by":20,"id":"11239","owners":[20],"pid":{"revision_id":0,"type":"depid","value":"11239"},"status":"published"},"_oai":{"id":"oai:nifs-repository.repo.nii.ac.jp:00011239","sets":["6:7"]},"author_link":["126493","66530","124354","67399","127335","127480","66901"],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-05-08","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageStart":"4744","bibliographicVolumeNumber":"12","bibliographic_titles":[{"bibliographic_title":"Applied Sciences "}]}]},"item_10001_description_4":{"attribute_name":"著者ID","attribute_value_mlt":[{"subitem_description":"0000-0001-5473-2109","subitem_description_type":"Other"}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A new Doppler radar using millimeter-waves in the Ka-band, named the “dual-comb Doppler reflectometer”, has been developed to measure the turbulence intensity and its velocity in high-temperature plasmas. For the realization of a fusion power generation, it is very important to know the spatial structure of turbulence, which is the cause of plasma confinement degradation. As a non-invasive and high spatial resolution measurement method for this purpose, we apply a multi-frequency Doppler radar especially with simultaneous multi-point measurement using a frequency comb. The newly developed method of synchronizing two frequency combs allows a lower intermediate frequency (IF) than the previously developed frequency comb radar, lowering the bandwidth of the data acquisition system and enabling low-cost, long-duration plasma measurements. In the current dual-comb radar system, IF bandwidth is less than 0.5 GHz; it used to be 8 GHz for the entire Ka-band probing. We applied this system to the high-temperature plasma experimental device, the Large Helical Device (LHD), and, to demonstrate this system, verified that it shows time variation similar to that of the existing Doppler radar measurements.","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"MDPI "}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.3390/app12094744 ","subitem_relation_type_select":"DOI"}}]},"item_10001_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":" Appl. Sci. 2022, 12(9), 4744; https://doi.org/10.3390/app12094744 "}]}]},"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/10.3390/app12094744 ","subitem_relation_type_select":"DOI"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2076-3417 ","subitem_source_identifier_type":"ISSN"}]},"item_10001_text_23":{"attribute_name":"NAIS","attribute_value_mlt":[{"subitem_text_value":"13364"}]},"item_10001_text_25":{"attribute_name":"書誌的事項","attribute_value_mlt":[{"subitem_text_value":"This article belongs to the Special Issue Development and Applications of Microwave/Millimeter Wave Diagnostics in Industry"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"TOKUZAWA,  Tokihiko"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"INAGAKI,  Shigeru"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"INOMOTO, Michiaki"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"EJIRI,  Akira"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NASU, Tatsuhiro"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TSUJIMURA, Ii Toru"}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":""}],"affiliationNames":[{"affiliationName":""}]}],"creatorNames":[{"creatorName":"IDA,  Katsumi"}],"familyNames":[{}],"givenNames":[{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-04-17"}],"displaytype":"detail","filename":"13364_Appl.Sci.pdf","filesize":[{"value":"3.3 MB"}],"format":"application/pdf","licensetype":"license_6","mimetype":"application/pdf","url":{"label":"13364_Appl.Sci","url":"https://nifs-repository.repo.nii.ac.jp/record/11239/files/13364_Appl.Sci.pdf"},"version_id":"4d556e3c-60e6-4997-bca7-00816aefa455"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"millimeter-wave","subitem_subject_scheme":"Other"},{"subitem_subject":"frequency comb","subitem_subject_scheme":"Other"},{"subitem_subject":"Doppler reflectometer","subitem_subject_scheme":"Other"},{"subitem_subject":"DBS","subitem_subject_scheme":"Other"},{"subitem_subject":"LHD","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Application of Dual Frequency Comb Method as an Approach to Improve the Performance of Multi-Frequency Simultaneous Radiation Doppler Radar for High Temperature Plasma Diagnostics","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Application of Dual Frequency Comb Method as an Approach to Improve the Performance of Multi-Frequency Simultaneous Radiation Doppler Radar for High Temperature Plasma Diagnostics"}]},"item_type_id":"10001","owner":"20","path":["7"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-05-27"},"publish_date":"2022-05-27","publish_status":"0","recid":"11239","relation_version_is_last":true,"title":["Application of Dual Frequency Comb Method as an Approach to Improve the Performance of Multi-Frequency Simultaneous Radiation Doppler Radar for High Temperature Plasma Diagnostics"],"weko_creator_id":"20","weko_shared_id":-1},"updated":"2024-04-24T06:42:19.407976+00:00"}