{"created":"2023-05-15T14:44:18.063421+00:00","id":60572,"links":{},"metadata":{"_buckets":{"deposit":"866fb895-02f3-4218-90fe-3401382afced"},"_deposit":{"created_by":1,"id":"60572","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"60572"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00060572","sets":["10:29"]},"author_link":["600950","600949"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2004-09-11","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We study numerically through a 2D and 3D particle-in-cell simulation various mechanisms of generation of femtosecond electron bunches in gas jet. The first is the LWFA of electrons injected due to wave-breaking on a shock-wave produced by a laser prepulse in a He gas-jet. A way to overcome the problem of broad energy spread is to utilize the self-injection of plasma electrons. This method is proposed and studied numerically. We also study effect of plasma and laser pulse parameters on the duration of the accelerated electrons. Such processes as the relativistic wave-breaking, plasma post-relaxation an so on may lead to considerable increase in the bunch duration, even to picosecond range. Some results of particle-in-cell numerical simulation are discussed.","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":"28th European Conference on Laser Interaction with Matter","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":"G, Zhidkov Alexey"}],"nameIdentifiers":[{"nameIdentifier":"600949","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"アレクセイ ジドコフ","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"600950","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":"Generation of femtosecond electron bunches and hard x-rays by ultra-intense laser wake-field acceleration in a gas jet","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Generation of femtosecond electron bunches and hard x-rays by ultra-intense laser wake-field acceleration in a gas jet"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2004-09-30"},"publish_date":"2004-09-30","publish_status":"0","recid":"60572","relation_version_is_last":true,"title":["Generation of femtosecond electron bunches and hard x-rays by ultra-intense laser wake-field acceleration in a gas jet"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:52:14.666606+00:00"}