{"_buckets": {"deposit": "1bacc212-4a23-4905-b69b-ea18697b3036"}, "_deposit": {"id": "19950", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "19950"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00019950"}, "item_9_alternative_title_19": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "Outline of recent advances 14C AMS"}]}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2015-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "60", "bibliographicPageStart": "55", "bibliographicVolumeNumber": "26", "bibliographic_titles": [{"bibliographic_title": "\u540d\u53e4\u5c4b\u5927\u5b66\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u696d\u7e3e\u5831\u544a\u66f8"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "AMS (accelerator mass spectrometry) is an efficient and accurate way to measure the 14C content of a sample. In the last ten years, smaller, more user-friendly and less expensive accelerators have been developed in the field of AMS, as traditional accelerators are huge and need a lot of manpower and money to operate. Now, the more compact AMS system operating with terminal voltages of \u22640.50 MV, e.g. compact-AMS (CAMS) with 0.5 MV, single-stage AMS (SSAMS) with 0.25 MV, and Mini Carbon Dating System (MICADAS) with 0.20 MV, allows high 14C yield and a low background, and 14C-AMS direct measurements of CO2 gas are coming true for ultra-small samples (several to 100 \u03bcgC) without contamination. Furthermore, automated combustion and graphitization have reduced the work for sample preparation. This paper describes the outline of recent advances in 14C AMS. \u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790(AMS)\u306f\u8a66\u6599\u4e2d\u306e14C\u6fc3\u5ea6\u3092\u9ad8\u7cbe\u5ea6\u30fb\u9ad8\u78ba\u5ea6\u306b\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306e\u6709\u52b9\u306a\u624b\u6bb5\u3067\u3042\u308b\u3002\u3053\u305310\u5e74\u306e\u9593\u306b\u3001\u3053\u308c\u307e\u3067\u306e\u5de8\u5927\u3067\u5165\u624b\u3082\u7d4c\u8cbb\u3082\u304b\u304b\u308b\u52a0\u901f\u5668\u306b\u4ee3\u308f\u308a\u3001\u5c0f\u578b\u3067\u3001\u5229\u7528\u8005\u304c\u4f7f\u3044\u3084\u3059\u304f\u3001\u5b89\u4fa1\u306aAMS\u304c\u958b\u767a\u3055\u308c\u3001\u4e16\u754c\u4e2d\u306b\u5e83\u304f\u666e\u53ca\u3057\u3066\u304d\u305f\u3002\u73fe\u5728\u3067\u306f\u30010 .50 MV\u4ee5\u4e0b\u306e\u52a0\u901f\u96fb\u5727\u306e\u5c0f\u578bAMS \u30b7\u30b9\u30c6\u30e0(\u4f8b\u3048\u3070\u30010.50 MV\u306eCAMS\u30010.25 MV\u306eSSAMS\u30010.20 MV\u306eMICADAS) \u306b\u3088\u308a\u3001\u4f4e\u3044\u30d0\u30c3\u30af\u30b0\u30e9\u30a6\u30f3\u30c9\u3067\u9ad8\u7cbe\u5ea6\u306a14C\u6e2c\u5b9a\u304c\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u308b\u3002\u307e\u305f\u3001\u30ac\u30b9\u30a4\u30aa\u30f3\u6e90\u306e\u958b\u767a\u3082\u9032\u307f\u3001\u76f4\u63a5\u3001\u8a66\u6599CO2\u30ac\u30b9\u3092AMS\u306b\u5c0e\u5165\u3057\u3066\u6570-100\u03bcg\u306e\u70ad\u7d20\u91cf\u306714C\u6e2c\u5b9a\u304c\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u308b\u3002\u81ea\u52d5\u8a66\u6599\u8abf\u88fd\u30b7\u30b9\u30c6\u30e0\u306e\u958b\u767a\u3082\u884c\u306a\u308f\u308c\u3001\u8a66\u6599\u8abf\u88fd\u7cfb\u3092\u30ac\u30b9\u30a4\u30aa\u30f3\u6e90\u306bGIS\u3092\u7528\u3044\u3066\u63a5\u7d9a\u3057\u3001\u8a66\u6599\u8abf\u88fd\u306e\u8fc5\u901f\u5316\u3001\u7c21\u4fbf\u5316\u304c\u5b9f\u73fe\u3057\u3066\u3044\u308b\u3002", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "\u5185\u5bb9\u8a18\u8ff0", "attribute_value_mlt": 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