Study of Accelerator Mass Spectrometry with a Large Tandem Accelerator

大型串联加速器加速器质谱研究

• 批准号: 04559002
• 负责人: NAGASHIMA Yasuo
• 金额: $ 11.52万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04559002/
• 关键词: AMS; TANDEM ACCELERATOR; ^<14>C; MASS ANALYSIS; AGE DETERMINATION

An accelerator mass spectrometry (AMS) system has been developed with a large 12UD tandem static accelerator as a three year project starting from 1992.A 'di-molecular pilot beam method' has been tested successfully and is used for AMS measurements without any modification to the existing tandem system.Both a negative ion source system and a particle detection system have been constructed. Both system dedicated on the AMS study are connected to the tandem system and are working very well as a essential parts of the AMS system.Up to now, the detection of ^<14>C,^<26>Al, ^<32>Si, ^<36>Cl elements have been commenced. It is confirmed that ^<14>C measurement can be performed within 2% error and with 3*10^<-15> sensitivity. This performance is good enough for many studies using ^<14>C measurement. On the other hand, the precision of the measurement of another element is not highly now.Hereafter, Adding to an improvement on detection accuracy of the heavier element, we are planning to measure 129I with di-molecular pilot beam method as a very important elements especially on our large tandem accelerator.

从1992年开始，我们用12 UD串列静电加速器研制了加速器质谱（AMS）系统，并成功地试验了双分子引导束方法，在不改变现有串列加速器系统的情况下，用于AMS测量。我们还建造了负离子源系统和粒子探测系统。这两个专门用于AMS研究的系统都连接到串联系统，并且作为AMS系统的重要组成部分运行良好。到目前为止，已开始对^<14>C、^<26>Al、^<32>Si、^<36>Cl元素进行检测。实验结果表明，<14>该方法可实现2%误差范围内的~（10）C测量，灵敏度为3 × 10 ~（10<-15>）。这种性能对于许多使用^ C测量的研究来说足够好<14>。另一方面，目前对另一种元素的测量精度还不高，为了提高对重元素的探测精度，我们计划在我们的大型串列加速器上用双分子引导束方法测量129 I这一重要元素。

项目成果

長島 泰夫(招待講演): "ACCELERATOR MASS SPECTROSCOPY WITH DY-MOLECULAR PILOT BEAM METHOD" PROCEEDINGS OF 6TH INT.CONF.ON ELECTROSTATIC ACCELERATORS,PADOVA ITALY 1〜6 JUNE,(1992). (1992)

Yasuo Nagashima（特邀报告）：“ACCELERATOR Mass SPECTROSCOPY FOR DY-MOLECULAR Pilot BEAM METHOD”Proceedings of 6TH INT.CONF.ON ELECTROSTATIC ACCELERATORS，PADOVA ITALY 1〜6 JUNE，（1992）。

Y.Nagashima, N.yoshizawa, H.shioya, T.Takahashi, T.Kaikura, Y.Tajima, T,Aoki, and K.Furuno: "The Construction of an Accelerator Mass Spectrometry System with 12UD Pelletron Tandem Accelerator at the University of Tsukuba." Proceedings of the Fifth Japan-C

Y.Nagashima、N.yoshizawa、H.shioya、T.Takahashi、T.Kaikura、Y.Tajima、T、Aoki 和 K.Furuno：“在大学使用 12UD Pelletron 串联加速器构建加速器质谱系统

Yasuo Nagashima: "An Accelerator Mass Spectrometry System with the 12UD Pelletron at the University of Tsukuba" Nuclear Instruments and Methods in Physics Research. (In Press). (1994)

Yasuo Nagashima：“筑波大学配备 12UD Pelletron 的加速器质谱系统”物理研究中的核仪器和方法。

Yasuo Nagashima: "An Accelerator Mass Spectrometry System with the 12UD Pelletron at the University of Tsukuba" Nuclear Instruments and Methods in Physics Research. B92. 55-58 (1994)

Yasuo Nagashima：“筑波大学配备 12UD Pelletron 的加速器质谱系统”物理研究中的核仪器和方法。

Yasuo Nagashima: "The Construction of an Accelerator Mass Spectorometry System with 12UD Pelletron Tandem Accelerator at the University of Tsukuba" Proceedings of the Fifth Japan-China Joint Symposium on Accelerator for Nuclear Science and Their Applicati

长岛康夫：《筑波大学用12UD Pelletron串联加速器构建加速器质谱系统》第五届中日核科学加速器及其应用联合研讨会论文集