{"_buckets": {"deposit": "5e9fca4d-17a0-4bd4-942c-50fff384f1d7"}, "_deposit": {"id": "2070", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "2070"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00002070"}, "item_5_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2009-01", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "1482", "bibliographicPageStart": "1477", "bibliographicVolumeNumber": "8", "bibliographic_titles": [{"bibliographic_title": "Journal of Plasma and Fusion Research Series"}, {"bibliographic_title": "Journal of Plasma and Fusion Research Series", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "We study a disk cathode in the weakly relativistic region less than 100 kV by comparing the conventional\u3000tubular cathode. The disk cathode is an explosive electron emission cathode made of bare metal. The beam\u3000generated by the disk cathode has the more uniform distribution and has the higher current density compared with\u3000the tubular cathode with velvet. For the uniform emission, some surface roughness of 1 \ufffd\ufffd\ufffd\ufffdm order is required on the\u3000emission surface. Metals such as aluminum, copper and stainless steel are tested as the cathode. Up to now, the best\u3000result is obtained by a copper cathode. In view of application to the weakly relativistic oversized backward wave\u3000oscillator, the disk cathode is superior to the tubular cathode and is effective for the high-power operation.", "subitem_description_type": "Abstract"}]}, "item_5_publisher_7": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "Japan Society of Plasma Science and Nuclear Fusion Research"}]}, "item_5_relation_11": {"attribute_name": "\u66f8\u8a8c\u30ec\u30b3\u30fc\u30c9ID", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "BB02424086", "subitem_relation_type_select": "NCID"}}]}, "item_5_relation_31": {"attribute_name": "\u7570\u7248\u3067\u3042\u308b", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://www.jstage.jst.go.jp/browse/pfr", "subitem_relation_type_select": "URI"}}]}, "item_5_rights_15": {"attribute_name": "\u6a29\u5229", "attribute_value_mlt": [{"subitem_rights": "\u4e00\u822c\u793e\u56e3\u6cd5\u4eba\u30d7\u30e9\u30ba\u30de\u30fb\u6838\u878d\u5408\u5b66\u4f1a"}]}, "item_5_select_19": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Oe, Hiroaki"}], "nameIdentifiers": [{"nameIdentifier": "6965", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Ogura, Kazuo"}], "nameIdentifiers": [{"nameIdentifier": "6966", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kazahari, Yusuke"}], "nameIdentifiers": [{"nameIdentifier": "6967", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Bansho, Kiyoshi"}], "nameIdentifiers": [{"nameIdentifier": "6968", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Iizuka, Hiroshi"}], "nameIdentifiers": [{"nameIdentifier": "6969", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sugawara, Akira"}], "nameIdentifiers": [{"nameIdentifier": "6970", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kim, W.S."}], "nameIdentifiers": [{"nameIdentifier": "6971", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-07-29"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "8_1477.pdf", "filesize": [{"value": "320.5 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 320500.0, "url": {"label": "8_1477.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/2070/files/8_1477.pdf"}, "version_id": "e7c14c40-f725-4b7b-ba00-253e79b97920"}]}, "item_keyword": {"attribute_name": "\u30ad\u30fc\u30ef\u30fc\u30c9", "attribute_value_mlt": [{"subitem_subject": "disk cathode", "subitem_subject_scheme": "Other"}, {"subitem_subject": "cold cathode", "subitem_subject_scheme": "Other"}, {"subitem_subject": "explosive emission", "subitem_subject_scheme": "Other"}, {"subitem_subject": "weakly relativistic region", "subitem_subject_scheme": "Other"}, {"subitem_subject": "surface roughness", "subitem_subject_scheme": "Other"}, {"subitem_subject": "backward wave oscillator", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Experimental Study on Disk Type Cold Cathode in Weakly Relativistic Energy Region", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "Experimental Study on Disk Type Cold Cathode in Weakly Relativistic Energy Region"}, {"subitem_title": "Experimental Study on Disk Type Cold Cathode in Weakly Relativistic Energy Region", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["453/454", "423/424/425"], "permalink_uri": "http://hdl.handle.net/10191/21864", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2013-04-18"}, "publish_date": "2013-04-18", "publish_status": "0", "recid": "2070", "relation": {}, "relation_version_is_last": true, "title": ["Experimental Study on Disk Type Cold Cathode in Weakly Relativistic Energy Region"], "weko_shared_id": null}