{"created":"2023-05-15T14:51:55.782757+00:00","id":70987,"links":{},"metadata":{"_buckets":{"deposit":"0cf18f91-7b4d-41d2-b7a6-a4c4fecc76db"},"_deposit":{"created_by":1,"id":"70987","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"70987"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00070987","sets":["10:28"]},"author_link":["697751","697766","697749","697752","697759","697763","697748","697747","697755","697754","697753","697758","697760","697757","697764","697750","697761","697762","697756","697765"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2012-11-03","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We are developing the OpenPET which is well suited to in-beam PET in carbon ion therapy thanks to the open space. The in-beam PET can image the distribution of positron emitters during beam irradiation for in-situ dose monitoring. Therefore careful designing and testing of OpenPET detectors are important because secondary particles generated in a target degrade detector performance in the OpenPET geometry and the quantity of positron emitters produced in in-beam PET is very small. In this paper, we optimized the final design of the in-beam OpenPET detector. Some detector components were changed from our previous work for use under practical situations. We carried out in-beam tests of this new detector for carbon beam irradiation with practical intensities. The constructed OpenPET detector consists consisted of a 16x16x4 crystal array with four-layer DOI encoding capability and a PS-PMT. The scintillator material was changed from LGSO that included radio isotopes to GSOZ. In order to compensate for the lower light yield of GSOZ, we applied the PS-PMT (R10552-100-M64) with the super bialkali photocathode which realizes 30% higher quantum efficiency than the conventional bialkali type. A large current divider circuit was applied since the PMT current exceeded the dynamic range of a normal divider circuit under the targeted practical situations. Irradiation tests were done in HIMAC. The energy and intensities of the C-12 beam were 290MeV/u and 10^8 -10^9 particles per second (pps), respectively. The detector was positioned 30cm from the backside of the water phantom at an angle of 30deg. We obtained sufficient crystal identification performance around 10^8 pps, although the position histogram was degrading slightly with increasing C-12 beam intensity. The average energy resolution of 14.9% was obtained for 511keV gamma rays. We concluded that the constructed detector was able to function as the OpenPET detector for in-beam imaging.","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":"2012IEEE NSS&MIC","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":"Nishikido, Fumihiko"}],"nameIdentifiers":[{"nameIdentifier":"697747","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hirano, Yoshiyuki"}],"nameIdentifiers":[{"nameIdentifier":"697748","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Inadama, Naoko"}],"nameIdentifiers":[{"nameIdentifier":"697749","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshida, Eiji"}],"nameIdentifiers":[{"nameIdentifier":"697750","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tashima, Hideaki"}],"nameIdentifiers":[{"nameIdentifier":"697751","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Satou, Shinji"}],"nameIdentifiers":[{"nameIdentifier":"697752","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Inaniwa, Taku"}],"nameIdentifiers":[{"nameIdentifier":"697753","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murayama, Hideo"}],"nameIdentifiers":[{"nameIdentifier":"697754","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ito, Hiroshi"}],"nameIdentifiers":[{"nameIdentifier":"697755","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamaya, Taiga"}],"nameIdentifiers":[{"nameIdentifier":"697756","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"錦戸 文彦","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697757","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"平野 祥之","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697758","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲玉 直子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697759","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉田 英治","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697760","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田島 英朗","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697761","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"佐藤 眞二","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697762","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"稲庭 拓","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697763","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"村山 秀雄","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697764","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"伊藤 浩","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697765","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"山谷 泰賀","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697766","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":"Optimization of the in-Beam OpenPET Detector for Carbon Beam Irradiation","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Optimization of the in-Beam OpenPET Detector for Carbon Beam Irradiation"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-11-19"},"publish_date":"2012-11-19","publish_status":"0","recid":"70987","relation_version_is_last":true,"title":["Optimization of the in-Beam OpenPET Detector for Carbon Beam Irradiation"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:56:30.539673+00:00"}