{"created":"2023-05-15T14:53:43.250854+00:00","id":73156,"links":{},"metadata":{"_buckets":{"deposit":"bcc498e4-469e-4a5a-8b61-ed7469800139"},"_deposit":{"created_by":1,"id":"73156","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"73156"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00073156","sets":["10:28"]},"author_link":["720900","720901","720879","720886","720899","720906","720883","720908","720902","720898","720913","720880","720885","720897","720887","720919","720882","720905","720888","720890","720903","720904","720895","720909","720884","720891","720892","720917","720912","720877","720878","720916","720907","720894","720881","720910","720889","720893","720896","720914","720918","720920","720915","720911","720876"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2018-05-28","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Laser-driven ion acceleration has been one of the most active areas of research over approximately the past decade, because accelerated multi-MeV ion beams have unique properties that can be employed in a broad range of applications. From a view point of practical applications, high-purity proton beams with high reproducibility are quite advantageous. In experiments using thin foil targets, however, protons from surface contaminants along with the high-z component materials are accelerated together, making the production of impurity-free proton beams unrealistic. \n     Here we introduce a micron-size hydrogen cluster (composed of 10^8-10 hydrogen molecules) as a target to generate impurity-free, highly-reproducible, and robust multi-MeV proton beams. Because of the recent progress in intense laser technology, the advanced PW class lasers can now achieve intense laser fields around 10^22 W/cm^2; with such fields, all the electrons inside the micron-size hydrogen cluster can be fully stripped off, resulting in a pure Coulomb explosion with a pronounced increase in accelerated maximum proton energies \nBy using the micron-size hydrogen cluster target, we have conducted ion acceleration experiments with the 0.1 Hz PW class J-KAREN laser at QST-KPSI . In order to characterize the accelerated ions, we used nuclear track detector plates (CR-39), nuclear emulsion plates, and a real-time Thomson parabola equipped with a micro-channel plate (MCP), a phosphor screen, and a CCD camera. We found that only protons having the maximum energy of ~12 MeV, consistent with the theoretical prediction, were accelerated at a laser focused intensity of 1×10^20 W/cm^2. Based on the experimental results, the detailed ion acceleration mechanism by Coulomb explosion of clusters is discussed with the help from numerical simulations using a particle-in-cell (PIC) method.","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"12th International Conference on High Energy Density Laboratory Astrophysics","subitem_description_type":"Other"}]},"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":"福田, 祐仁"}],"nameIdentifiers":[{"nameIdentifier":"720876","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"金崎, 真聡"}],"nameIdentifiers":[{"nameIdentifier":"720877","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神野, 智史"}],"nameIdentifiers":[{"nameIdentifier":"720878","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ピロジコフ, アレキサンダー"}],"nameIdentifiers":[{"nameIdentifier":"720879","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂, 明人"}],"nameIdentifiers":[{"nameIdentifier":"720880","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉, 浩一"}],"nameIdentifiers":[{"nameIdentifier":"720881","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宮坂, 泰弘"}],"nameIdentifiers":[{"nameIdentifier":"720882","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中新, 信彦"}],"nameIdentifiers":[{"nameIdentifier":"720883","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宇野, 雅貴"}],"nameIdentifiers":[{"nameIdentifier":"720884","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"高野, 雄太"}],"nameIdentifiers":[{"nameIdentifier":"720885","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森井, 厚作"}],"nameIdentifiers":[{"nameIdentifier":"720886","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"浅井, 孝文"}],"nameIdentifiers":[{"nameIdentifier":"720887","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"坂本, 渓太"}],"nameIdentifiers":[{"nameIdentifier":"720888","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"清水, 和輝"}],"nameIdentifiers":[{"nameIdentifier":"720889","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森島, 邦博"}],"nameIdentifiers":[{"nameIdentifier":"720890","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小平, 聡"}],"nameIdentifiers":[{"nameIdentifier":"720891","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岡本, 祐樹"}],"nameIdentifiers":[{"nameIdentifier":"720892","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松井, 隆太郎"}],"nameIdentifiers":[{"nameIdentifier":"720893","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岸本, 泰明"}],"nameIdentifiers":[{"nameIdentifier":"720894","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小田, 啓二"}],"nameIdentifiers":[{"nameIdentifier":"720895","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山内, 知也"}],"nameIdentifiers":[{"nameIdentifier":"720896","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"上坂, 充"}],"nameIdentifiers":[{"nameIdentifier":"720897","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"近藤, 公伯"}],"nameIdentifiers":[{"nameIdentifier":"720898","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河内, 哲哉"}],"nameIdentifiers":[{"nameIdentifier":"720899","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神門, 正城"}],"nameIdentifiers":[{"nameIdentifier":"720900","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"桐山, 博光"}],"nameIdentifiers":[{"nameIdentifier":"720901","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"福田 祐仁","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720902","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"ピロジコフ アレキサンダー","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720903","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"匂坂 明人","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720904","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小倉 浩一","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720905","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宮坂 泰弘","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720906","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中新 信彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720907","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"宇野 雅貴","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720908","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"高野 雄太","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720909","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"森井 厚作","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720910","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"浅井 孝文","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720911","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"坂本 渓太","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720912","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"清水 和輝","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720913","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小平 聡","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720914","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岡本 祐樹","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720915","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松井 隆太郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720916","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"近藤 公伯","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720917","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"河内 哲哉","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720918","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神門 正城","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720919","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"桐山 博光","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"720920","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 object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Muti-MeV proton beams accelerated by Coulomb explosion of micron-size hydrogen clusters","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Muti-MeV proton beams accelerated by Coulomb explosion of micron-size hydrogen clusters"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-01-21"},"publish_date":"2019-01-21","publish_status":"0","recid":"73156","relation_version_is_last":true,"title":["Muti-MeV proton beams accelerated by Coulomb explosion of micron-size hydrogen clusters"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:32:18.534896+00:00"}