{"created":"2023-05-15T14:43:48.840838+00:00","id":59938,"links":{},"metadata":{"_buckets":{"deposit":"cbecbe75-7949-4338-9006-d3e50780864c"},"_deposit":{"created_by":1,"id":"59938","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"59938"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00059938","sets":["10:29"]},"author_link":["596183","596184"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2003-09-02","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"High-energy heavy-ion cancer treatment is being carried out at Heavy Ion Medical Accelerator in Chiba (HIMAC) with 140-400 MeV/u carbon ions.  Ion sources for the medical facilities should have characteristics of easy maintenance, low electric power, good stability and long operation time without maintenance (one year or more).  The 10 GHz compact ECRIS with all permanent magnets is developed since 2000.  The beam intensity and stability for C4+ are 300 eA and better than 6% during 20 hours with no adjustment of any source parameter.  These results are acceptable for the medical requirement. \n\\nIn addition, in order to realize various applications, beam intensities of the highly charged ions such as oxygen and argon were increased by the following improvements; 1) biased disk method, 2) additional vacuum pomp at the injection side, 3) gas mixing method, 4) biased cylinder.  Output currents of O6+ and Ar8+ are more than 120 eA and 140 eA, respectively. \n\\nRecently, many plans were developed for the construction of the next generation treatment facility.  For such facility we have designed a new all permanent magnet ECRIS.  Higher magnetic field is chosen than the previous one for increasing beam intensity.  The maximum mirror magnetic field on the beam axis are 0.58 T at the extraction side and 0.87 T at the gas injection side.  The minimum B strength is 0.25 T.  The source is 30 cm diameter and 29 cm in length.  Details of the design are reported.","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":"第６４回応用物理学会学術講演会","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":"村松, 正幸"}],"nameIdentifiers":[{"nameIdentifier":"596183","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村松 正幸","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"596184","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"重イオンがん治療用小型ＥＣＲイオン源の開発","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"重イオンがん治療用小型ＥＣＲイオン源の開発"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2003-09-05"},"publish_date":"2003-09-05","publish_status":"0","recid":"59938","relation_version_is_last":true,"title":["重イオンがん治療用小型ＥＣＲイオン源の開発"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T21:59:21.307641+00:00"}