{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1361131644322280960.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.35848/1347-4065/ab7473"}},{"identifier":{"@type":"URI","@value":"https://iopscience.iop.org/article/10.35848/1347-4065/ab7473"}},{"identifier":{"@type":"URI","@value":"https://iopscience.iop.org/article/10.35848/1347-4065/ab7473/pdf"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Response of beam focusing to plasma fluctuation in a filament-arc-type negative ion source"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title>\n               <jats:p>Beam focusing is one of the most important elements for the stable and safe operation of high power negative ion beams, such as neutral beam injection into magnetically confined fusion plasmas. In order to investigate impacts of the source plasma fluctuation on beam focusing, a simultaneous measurement of the source plasma fluctuation and the beam current profile has been carried out in the research-and-development negative ion source at the National Institute for Fusion Science. The responses of beam width and of the beam centre deviation are observed for the first time, indicating the importance of the source plasma stability for the negative ion beam focusing.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380025429413300486","@type":"Researcher","foaf:name":[{"@value":"Y. Haba"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322280832","@type":"Researcher","foaf:name":[{"@value":"K. Nagaoka"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322281093","@type":"Researcher","foaf:name":[{"@value":"K. Tsumori"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322280966","@type":"Researcher","foaf:name":[{"@value":"M. Kisaki"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322281091","@type":"Researcher","foaf:name":[{"@value":"K. Takahashi"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322280962","@type":"Researcher","foaf:name":[{"@value":"H. Nakano"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322281094","@type":"Researcher","foaf:name":[{"@value":"K. Ikeda"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322280963","@type":"Researcher","foaf:name":[{"@value":"S. Yoshimura"}]},{"@id":"https://cir.nii.ac.jp/crid/1381131644322280967","@type":"Researcher","foaf:name":[{"@value":"M. Osakabe"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00214922"},{"@type":"EISSN","@value":"13474065"}],"prism:publicationName":[{"@value":"Japanese Journal of Applied Physics"}],"dc:publisher":[{"@value":"IOP 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ion beam"}]},{"@id":"https://cir.nii.ac.jp/crid/1040000782006499840","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"18KK0080"},{"@type":"JGN","@value":"JP18KK0080"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18KK0080/"}],"notation":[{"@language":"ja","@value":"準定常負イオン源におけるビーム引出界面の物理過程と粒子ダイナミクス制御"},{"@language":"en","@value":"Beam extraction boundary physics and control of particle dynamics for steady state negative ion sources"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050573407667240448","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Beam instability in the vicinity of beam extraction region of negative ion source"}]},{"@id":"https://cir.nii.ac.jp/crid/1050584475582260224","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Response of negative ion 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