{"_buckets": {"deposit": "4ef29672-a4a6-4483-b07f-d19662ea012b"}, "_deposit": {"created_by": 1, "id": "54957", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "54957"}, "status": "published"}, "_oai": {"id": "oai:repo.qst.go.jp:00054957", "sets": ["2"]}, "author_link": ["561974", "561976", "561973", "561975", "561979", "561972", "561978", "561977"], "item_10003_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2019-01", "bibliographicIssueDateType": "Issued"}, "bibliographic_titles": [{"bibliographic_title": "Proceedings of ERL17, the 59th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs"}]}]}, "item_10003_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "We have developed a DC gun test stand at National Institutes for Quantum Radiological Science and Technology (QST) for high current electron beam generation. The gun test stand consists of an alkali antimonide photocathode preparation chamber, a DC gun with a 250kV-50mA Cockcroft Walton high voltage power supply, and beam line with a water cooled beam dump to accommodate 1.5 kW beam power. We successfully fabricated a Cs₃Sb photocathode with quantum efficiency of 5.8 % at 532 nm wavelength and generated 150 keV beam with current up to 4.3 mA with 500 mW laser at 532 nm wavelength. Unfortunately, we encountered a vacuum incident during beam transport of high current beam and the development has been halted. We will fix the vacuum problem and restart the gun development as soon as possible.", "subitem_description_type": "Abstract"}]}, "item_10003_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.18429/JACoW-ERL2017-MOPSPP015", "subitem_relation_type_select": "DOI"}}]}, "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": "西森, 信行"}], "nameIdentifiers": [{"nameIdentifier": "561972", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "羽島, 良一"}], "nameIdentifiers": [{"nameIdentifier": "561973", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "永井, 良治"}], "nameIdentifiers": [{"nameIdentifier": "561974", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "沢村, 勝"}], "nameIdentifiers": [{"nameIdentifier": "561975", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "西森 信行", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "561976", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "羽島 良一", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "561977", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "永井 良治", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "561978", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "沢村 勝", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "561979", "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 paper", "resourceuri": "http://purl.org/coar/resource_type/c_5794"}]}, "item_title": "Development of a Multialkali Photocathode DC Gun for High Current Operation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Development of a Multialkali Photocathode DC Gun for High Current Operation"}]}, "item_type_id": "10003", "owner": "1", "path": ["2"], "permalink_uri": "https://repo.qst.go.jp/records/54957", "pubdate": {"attribute_name": "公開日", "attribute_value": "2019-01-10"}, "publish_date": "2019-01-10", "publish_status": "0", "recid": "54957", "relation": {}, "relation_version_is_last": true, "title": ["Development of a Multialkali Photocathode DC Gun for High Current Operation"], "weko_shared_id": -1}