{"created":"2023-05-15T14:53:36.094227+00:00","id":72995,"links":{},"metadata":{"_buckets":{"deposit":"79535927-e423-438b-bbf1-a7fdf3ba3f2c"},"_deposit":{"created_by":1,"id":"72995","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"72995"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00072995","sets":["10:28"]},"author_link":["719315","719314","719320","719322","719312","719317","719324","719316","719325","719311","719321","719310","719313","719318","719319","719323"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2018-11-15","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Water  window (WW) soft X-rays (wavelength 2.3 to 4.4  nm)  are  easily  absorbed  by  carbon  and  are  hardly absorbed by water around the living cells. Therefore, X-ray  microscopy  using  WW  soft  X-ray  is  expected  as  a technology  for  observing  nanometer  scale  structure  of living cells.  In order to obtain a high spatial resolution image with a soft X-ray microscope, a high intensity soft X-ray source is necessary, and usually high-power lasers of 10 J or more is indispensable. This is a major obstacle to spread and development of soft X-ray microscopes in medical and biological research fields. \nRecently, it has been found that when a gold target is irradiated with a commercial Nd:YAG laser (1064 nm, 7 ns, 1 J) under low-pressure nitrogen atmospheres up to 400  Pa,  Soft  X  rays  intensity  emitted  from  plasmas increase significantly. Accordingly, a compact and low-cost X-ray microscope can be expected. In this study, in order to generate hot dense plasmas emitting much bright X-ray radiation, picosecond lasers with 10-ps and 500-ps pulse durations were employed. Gas  fill circumstance  is  achieved  by  introducing  nitrogen  gas using  a  mass  flow  controller.  For  the  soft  X-ray measurement, a grazing incidence spectrometer (flat field grating of 2400 grooves / mm) with a toroidal focusing mirror is used. A pinhole camera with an aperture of 0-micron  in  diameter  is  also  installed  to  measure  two-dimensional  X-ray  imaging  (magnification  of  14×).  To block the out-of-band radiation, appropriate thin filters are inserted in the pinhole tube. \nIn this presentation, we will also report the influence on nitrogen gas fill circumstances by using picosecond laser pulses.","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":"2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018)","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":"Kakunaka, N."}],"nameIdentifiers":[{"nameIdentifier":"719310","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"John, C."}],"nameIdentifiers":[{"nameIdentifier":"719311","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岸本, 牧"}],"nameIdentifiers":[{"nameIdentifier":"719312","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsumoto, Y."}],"nameIdentifiers":[{"nameIdentifier":"719313","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"長谷川, 登"}],"nameIdentifiers":[{"nameIdentifier":"719314","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦野, 将元"}],"nameIdentifiers":[{"nameIdentifier":"719315","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Higashiguch, T."}],"nameIdentifiers":[{"nameIdentifier":"719316","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ejima, T."}],"nameIdentifiers":[{"nameIdentifier":"719317","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sunahara, A."}],"nameIdentifiers":[{"nameIdentifier":"719318","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nakajima, F."}],"nameIdentifiers":[{"nameIdentifier":"719319","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Johzaki, T."}],"nameIdentifiers":[{"nameIdentifier":"719320","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Endo, T."}],"nameIdentifiers":[{"nameIdentifier":"719321","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Namba, S."}],"nameIdentifiers":[{"nameIdentifier":"719322","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"岸本 牧","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"719323","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"長谷川 登","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"719324","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦野 将元","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"719325","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":"Water window soft X-ray emission from Au plasmas generated with a picosecond laser pulse","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Water window soft X-ray emission from Au plasmas generated with a picosecond laser pulse"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-11-07"},"publish_date":"2018-11-07","publish_status":"0","recid":"72995","relation_version_is_last":true,"title":["Water window soft X-ray emission from Au plasmas generated with a picosecond laser pulse"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:33:53.804429+00:00"}