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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学加速器質量分析計業績報告書
  4. 26

近年の14C AMS進歩の概要

https://doi.org/10.18999/sumrua.26.55
bba54b4d-2aad-4463-906d-3509cac7f971
名前 / ファイル ライセンス アクション
sumrua_26_55.pdf sumrua_26_55.pdf (7.7 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2015-05-18
タイトル
タイトル 近年の14C AMS進歩の概要
その他のタイトル
その他のタイトル Outline of recent advances 14C AMS
著者 南, 雅代

× 南, 雅代

WEKO 84164

南, 雅代

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Minami, Masayo

× Minami, Masayo

WEKO 84165

Minami, Masayo

Search repository
キーワード
主題Scheme Other
主題 14C AMS
キーワード
主題Scheme Other
主題 compact AMS
キーワード
主題Scheme Other
主題 gas ion source
キーワード
主題Scheme Other
主題 automated sample preparation
抄録
内容記述 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 ≤0.50 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 μgC) 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. 加速器質量分析(AMS)は試料中の14C濃度を高精度・高確度に測定するための有効な手段である。ここ10年の間に、これまでの巨大で入手も経費もかかる加速器に代わり、小型で、利用者が使いやすく、安価なAMSが開発され、世界中に広く普及してきた。現在では、0 .50 MV以下の加速電圧の小型AMS システム(例えば、0.50 MVのCAMS、0.25 MVのSSAMS、0.20 MVのMICADAS) により、低いバックグラウンドで高精度な14C測定が可能となっている。また、ガスイオン源の開発も進み、直接、試料CO2ガスをAMSに導入して数-100μgの炭素量で14C測定が可能となっている。自動試料調製システムの開発も行なわれ、試料調製系をガスイオン源にGISを用いて接続し、試料調製の迅速化、簡便化が実現している。
内容記述タイプ Abstract
内容記述
内容記述 名古屋大学年代測定総合研究センターシンポジウム報告
内容記述タイプ Other
出版者
出版者 名古屋大学年代測定資料研究センター
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
ID登録
ID登録 10.18999/sumrua.26.55
ID登録タイプ JaLC
書誌情報 名古屋大学加速器質量分析計業績報告書

巻 26, p. 55-60, 発行日 2015-03
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