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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. 9

名古屋大学に設置されているGIC社およびHVEE社製の2台のタンデトロン加速器質量分析計の現状

https://doi.org/10.18999/10.19999/sumrua.9.27
https://doi.org/10.18999/10.19999/sumrua.9.27
bd16e515-51d3-44f1-b7d9-7661b6ca66c9
名前 / ファイル ライセンス アクション
KJ00002410045.pdf KJ00002410045.pdf (993.5 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-05-19
タイトル
タイトル 名古屋大学に設置されているGIC社およびHVEE社製の2台のタンデトロン加速器質量分析計の現状
その他のタイトル
その他のタイトル Present Status of the GIC-and HVEE-Tandetron AMS Systems of the DMRC, Nagoya University
著者 中村, 俊夫

× 中村, 俊夫

WEKO 80479

中村, 俊夫

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Nakamura, Toshio

× Nakamura, Toshio

WEKO 80480

Nakamura, Toshio

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パルス, ルディ

× パルス, ルディ

WEKO 80481

パルス, ルディ

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Pals, Ludi

× Pals, Ludi

WEKO 80482

Pals, Ludi

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権利
権利情報 名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会
権利
権利情報 本文データは学協会の許諾に基づきCiNiiから複製したものである
キーワード
主題Scheme Other
主題 加速器質量分析
キーワード
主題Scheme Other
主題 タンデトロン
キーワード
主題Scheme Other
主題 高輝度セシウムスパッタ負イオン源
キーワード
主題Scheme Other
主題 同位体同時入射システム
キーワード
主題Scheme Other
主題 リコンビネーター
キーワード
主題Scheme Other
主題 ビームプロフィルモニタ
キーワード
主題Scheme Other
主題 電離箱検出器
抄録
内容記述 In the financial years of 1995-1996,we introduced a second-generation Tandetron (a carbon dating system, Model 4130-AMS) which was manufactured by High Voltage Engineering Europe (HVEE) BV, the Netherlands. Main improvements of the 2nd-generation Tandetron compared with the old GIC(General Ionex Corporation)-Tandetron are : (1) a high intensity cesium sputter ion source is equipped with the new system, so that the ^<14>C counting rate is almost one order higher than that for the old system. In addition, since up to 59 targets can be loaded at a time, measurements can be conducted more efficiently. (2) carbon isotopes ^<12>C-, ^<13>C- and ^<14>C- are injected into a tandem accelerator simultaneously, by using a recombinator system, which will archive high accuracy measurements of the carbon isotope ratio. (3) the terminal voltage of the accelerator is 2.5MV, which gives the maximum yield in producing C^<3+> from C- in the charge exchange process of the tandem accelerator. In addition, a slit feedback system with a position sensitive Faraday cup to monitor the energy of accelerated ^<13>C^<3+> ions stabilizes terminal voltage, which provides us highly stable isotope-ratio measurement. (4) a gas ionization detector measures E and E_<residual> of incoming ions, to separate ^<14>C^<3+> ions from various background ions. Provided that the background ions are rejected efficiently, ^<14>C ages older than 60,000 will be measurable with this system. (5) A computer program is equipped with the system which controls the carbon-isotope-ratio measurement for multi-samples automatically. This provides us a high-efficient measurement without any hard works of operation staff. These improvements are discussed here in detail. As the results of those improvements stated above, the highest performances in the ^<14>C measurements with the new Tandetron is : (1) a measurement error of ^<14>C age can be as small as ±20 years with a measurement time of a few tens of minutes for a carbon sample of less than 1 mg ; (2) a full automatic measurement can be routinely performed ; (3) more than 3,000 samples can be measured annually.
内容記述タイプ Abstract
内容記述
内容記述 第10回名古屋大学タンデトロン加速器質量分析計シンポジウム(平成9 (1997)年度)報告 「最新型タンデトロン加速器質量分析計(加速器年代測定システム)による高精度・高分解能14C年代測定の利用分野・方法の開拓(II)」
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 天然放射性元素測定小委員会
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 10.18999/10.19999/sumrua.9.27
ID登録タイプ JaLC
関連情報
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://ci.nii.ac.jp/naid/110001136041/
書誌情報 名古屋大学加速器質量分析計業績報告書

巻 9, p. 27-45, 発行日 1998-03
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