Development of a laser-ablation C-14 accelerator mass spectrometry system aiming for direct mapping measurements of C-14
| Project/Area Number |
26600138
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Quantum beam science
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| Research Institution | University of Tsukuba |
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Principal Investigator |
SASA Kimikazu 筑波大学, 数理物質系, 准教授 (20312796)
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| Co-Investigator(Kenkyū-buntansha) |
末木 啓介 筑波大学, 数理物質系, 教授 (90187609)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUNAKA Tetsuya 金沢大学, 環日本海域環境研究センター, 助教 (60731966)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 加速器質量分析法 / 炭素14年代測定 / CO2ガス負イオン源 / レーザーアブレーション / 量子ビーム / CO2ガスイオン源 / 加速器質量分析 / CO2ガス導入型負イオン源 |
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| Outline of Final Research Achievements |
We have developed a laser-ablation 14C accelerator mass spectrometry system for rapid 14C measurement on the 6 MV tandem accelerator at the University of Tsukuba. The first step in a process, we carried out tests to develop the rapid 14C measurement system, a gas ion source, a gas handling system, and an automatic sample preparation system. Technical innovation of AMS system for 14C is expected in terms of speed-up and high repeatability without graphite treatment in the sample preparation. An optimum CO2 flow ratio of 1.6 microliter/min. to the gas source was determined, and maximum 12C- current of 12 microampere was extracted from the gas source. The error of 14C/12C was 0.6%, and background of the gas source was 0.48±0.05 pMC (42,900 year BP). According to a study by the project, we found out potential in the gas ion source, the gas handling system and the automatic sample preparation system to allow the rapid 14C AMS measurement for interface of the laser-ablation 14C AMS system.
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Report
(4 results)
Research Products
(26 results)
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[Journal Article] Optimization of a ΔE - E detector for 41Ca AMS2017
Author(s)
Seiji Hosoya, Kimikazu Sasa, Tetsuya Matsunaka, Tsutomu Takahashi, Masumi Matsumura, Hiroshi Matsumura, Mark Sundquist, Mark Stodola, Keisuke Sueki
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Journal Title
Nuclear Instruments and Methods in Physics Research B
Volume: 印刷中
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] The new 6 MV multi-nuclide AMS facility at the University of Tsukuba2015
Author(s)
Sasa, K., Takahashi, T., Matsumura, M., Matsunaka, T., Satou, Y., Izumi, D. and Sueki, K.
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Journal Title
Nuclear Instruments and Methods in Physics Research Section B
Volume: 印刷中
Pages: 124-128
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Isobar separation performance of the Tsukuba 6 MV AMS system2016
Author(s)
Kimikazu Sasa, Tsutomu Takahashi, Tetsuya Matsunaka, Masumi Matsumura, Seiji Hosoya, Maki Honda, Keisuke Sueki, Mark Stodola, Mark Sundquist
Organizer
12th European Conference on Accelerators in Applied Research and Technology (ECAART12)
Place of Presentation
Jyvaskyla, Finland
Year and Date
2016-07-03
Related Report
Int'l Joint Research
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[Presentation] Construction of the 6 MV tandem accelerator for multi-nuclide AMS at the University of Tsukuba2015
Author(s)
Kimikazu Sasa, Tsutomu Takahashi, Masumi Matsumura, Tetsuya Matsunaka, Yukihiko Satou, Maki Honda, Daiki Izumi, Ryouhei Tomita, Seiji Hosoya, Aya Sakaguchi and Keisuke Sueki
Organizer
The 6th East Asia Accelerator Mass Spectrometry Symposium (EA-AMS 6)
Place of Presentation
National Taiwan University, Taipei, Taiwan
Year and Date
2015-10-05
Related Report
Int'l Joint Research / Invited
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[Presentation] 筑波大学6 MVタンデム加速器の導入状況と研究計画2014
Author(s)
笹 公和, 石井 聡, 大島 弘行, 木村 博美, 高橋 努, 田島 義一, 大和 良広, 関場 大一郎, 喜多 英治
Organizer
第27回タンデム加速器及びその周辺技術の研究会
Place of Presentation
京都大学, 京都府
Year and Date
2014-07-04 – 2014-07-05
Related Report
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