{"created":"2023-05-15T14:49:29.735110+00:00","id":67774,"links":{},"metadata":{"_buckets":{"deposit":"2ff563a2-a004-402a-9643-61e375a52526"},"_deposit":{"created_by":1,"id":"67774","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"67774"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00067774","sets":["10:28"]},"author_link":["665982","665983"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2004-04-29","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"There have been some reports on electron acceleration in a plasma produced by an intense laser pulse shorter than 50 fs. Most of experiments were performed with a plasma of which electron density was ~1019 cm-3. We report electron acceleration experiment with higher density (~1020 cm-3) plasma produced by a 50-fs laser pulse. The experiment was performed with a 2-TW Ti:sapphire laser system. The center wavelength was 800 nm. The laser beam was focused on a surface of a nitrogen or helium supersonic gas jet. An intensity at a focal point was 5 1018 W cm-2. The maximum electron energy and the total number of electrons above 1MeV were 30 MeV and 10 pC per shot, respectively. A Hump in the electron energy spectrum was observed at 6 MeV. The maximum electron energy and the total charge become higher, as the electron density become higher and maximized at the density around 1020 cm-3. In a forward scattered light spectrum, a Stokes satellite peak was observed and we could estimate a plasma density where a plasma wave was excited as around 1020 cm-3.","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":"高速点火レーザー相互作用国際会議","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":"Adachi, Masahiro"}],"nameIdentifiers":[{"nameIdentifier":"665982","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"阿達 正浩","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"665983","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":"FIHFP","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"FIHFP"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2004-05-06"},"publish_date":"2004-05-06","publish_status":"0","recid":"67774","relation_version_is_last":true,"title":["FIHFP"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:33:52.060119+00:00"}