{"created":"2023-05-15T14:35:56.669009+00:00","id":46254,"links":{},"metadata":{"_buckets":{"deposit":"aa98a397-77a5-471a-b21d-f4ecf0a9a3c0"},"_deposit":{"created_by":1,"id":"46254","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"46254"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00046254","sets":["1"]},"author_link":["460631","460621","460629","460630","460627","460624","460634","460622","460632","460633","460619","460623","460628","460620","460625","460626"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"41","bibliographicPageStart":"36","bibliographicVolumeNumber":"274","bibliographic_titles":[{"bibliographic_title":"Nuclear Instruments & Methods in Physics Research Section B"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We verified that the two-step etching method of the combination of pre-etching with PEW (Potassium hydroxide + Ethanol + Water) solution and post-etching with NaOH solution makes drastic improvement of charge resolution for high Z/b particles (Z: nuclear charge, b: velocity) in CR-39 nuclear track detectors. Detectors were exposed to several heavy ions from Ne to Kr with the energies of <500 MeV/n at HIMAC\n(Heavy Ion Medical Accelerator in Chiba). The optimum etching conditions were determined to be a preetching of PEW solution with concentration of 60 wt% of ethanol for 40 min and a post-etching of 7N NaOH for 12 h. This resulted in a charge resolution for Kr (Z/b~60) of 0.18 c.u. (charge units). The Z/b detection threshold was increased as a function of ethanol concentration in PEW pre-etching solutions. We found that the two-step etching method would be useful technique for the precise charge identification by a single track measurement. The 60 wt% ethanol concentration in PEW would be adequate selection for the purpose of trans-iron nuclei measurement discriminating abundant light nuclei in galactic cosmic rays.","subitem_description_type":"Abstract"}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0168-583X","subitem_source_identifier_type":"ISSN"}]},"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":"Kodaira, Satoshi"}],"nameIdentifiers":[{"nameIdentifier":"460619","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Naka, Shuichiro"}],"nameIdentifiers":[{"nameIdentifier":"460620","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yasuda, Nakahiro"}],"nameIdentifiers":[{"nameIdentifier":"460621","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kawashima, Hajime"}],"nameIdentifiers":[{"nameIdentifier":"460622","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kurano, Mieko"}],"nameIdentifiers":[{"nameIdentifier":"460623","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ota, Syuya"}],"nameIdentifiers":[{"nameIdentifier":"460624","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ideguchi, Yusuke"}],"nameIdentifiers":[{"nameIdentifier":"460625","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hasebe, Nobuyuki"}],"nameIdentifiers":[{"nameIdentifier":"460626","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ogura, Kouichi"}],"nameIdentifiers":[{"nameIdentifier":"460627","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"小平 聡","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460628","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"仲 秀一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460629","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"安田 仲宏","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460630","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"川嶋 元","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460631","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"蔵野 美恵子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460632","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"太田 周也","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460633","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"井手口 悠介","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"460634","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Improvement of charge resolution for high Z/b particles in CR-39 nuclear track detectors by means of two-step etching technique","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Improvement of charge resolution for high Z/b particles in CR-39 nuclear track detectors by means of two-step etching technique"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-01-17"},"publish_date":"2012-01-17","publish_status":"0","recid":"46254","relation_version_is_last":true,"title":["Improvement of charge resolution for high Z/b particles in CR-39 nuclear track detectors by means of two-step etching technique"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:54:03.492373+00:00"}