{"created":"2023-05-15T14:59:14.948633+00:00","id":80387,"links":{},"metadata":{"_buckets":{"deposit":"31e557dd-3595-4081-b73d-1904cd70fc63"},"_deposit":{"created_by":1,"id":"80387","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"80387"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00080387","sets":["10:29"]},"author_link":["884649","884648"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2020-09-03","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The recent advancements in both laser and target fabrication techniques have led to the enhancement of the accelerated proton cutoff energies close to 100 MeV. However, the energy spectra show a wide spread, which reduces the effective beam current to be utilized. In order to widen the possibility for high energy proton acceleration, here, we consider a different approach using micron-scale spherical hydrogen clusters, alternative to that using solid thin film targets.    \nRecently, we have presented a new scheme using prominent characteristics of cluster targets for achieving to the level of 300 MeV quasimonoenergetic proton bunch acceleration with a low angular divergence by utilizing the internal degree of freedom (d.o.f.). In this scheme, the collisionless shock dynamics inside the micron-scale cluster subsequently coupled with relativistically induced transparency (RIT) effect of high-intensity laser plays an important role. The external d.o.f. associated with the cluster expansion due to the sheath field is also incorporated. These multiple processes can be synchronized in a self-consistent manner once suitable conditions for the laser and the cluster are satisfied, leading to the quasimonoenergetic proton bunch acceleration. We named this process Converging Shock-induced Blow-off Acceleration (CSBA).\nThe result of a proof-of-principle experiment for the quasimonoenergetic proton bunch acceleration via interaction of micron-scale hydrogen cluster targets with PW-class laser pulses, conducted using the J-KAREN-P laser facility at KPSI-QST, will be presented.","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":"Workshop on Laboratory Astrophysics: Novel Development in Nonlinear Plasma Physics with Lasers","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":"Fukuda, Yuji"}],"nameIdentifiers":[{"nameIdentifier":"884648","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fukuda, Yuuji","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"884649","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":"Converging Shock-induced Blow-off Acceleration (CSBA): Towards laser acceleration of protons at nearly the speed of light","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Converging Shock-induced Blow-off Acceleration (CSBA): Towards laser acceleration of protons at nearly the speed of light"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-08-28"},"publish_date":"2020-08-28","publish_status":"0","recid":"80387","relation_version_is_last":true,"title":["Converging Shock-induced Blow-off Acceleration (CSBA): Towards laser acceleration of protons at nearly the speed of light"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:36:31.947717+00:00"}