| 加速器质谱测量岩石样品中~(41)Ca的初步研究; Preliminary Study of ~(41)Ca-AMS Measurement in Rock Samples | |
| 窦亮 ; 何明 ; 董克君 ; 武绍勇 ; 李振宇 ; 谢林波 ; 林德雨 ; 王晓波 ; 沈洪涛 ; 姜山 | |
| 2013-12-20 | |
| 关键词 | 岩石 CaF2 束流强度 41 Ca-AMS测量 rock CaF2 beam intensity 41Ca-AMS measurement |
| 英文摘要 | 41CA在核天体物理及地质年代学方面可能具有较高的应用价值。为测量天然岩石样品中41 CA的本底水平,探讨了41CA-AMS测量中岩石样品的CAf2制备,提出了二次氟化的制备方法。在此基础上,通过对导电介质与靶锥的改进,设计了一种提高CAf-3束流引出强度的方案。该方案可有效提高CAf-3束流引出强度。实验结果表明,天然岩石样品中41CA/40CA(41CA、40CA原子个数比)的本底水平低于8x10-14。; Perhaps the value of 41Ca applications in nuclear astrophysics and geochronology is high.The CaF2preparation of rock samples was investigated to measure the background level of 41Ca in the natural rock samples by AMS.A preparation method of secondary fluorination was proposed by some physical and chemical processes.On this basis,aprogram to improve CaF-3beam intensity was designed by improving conductive medium and target cone.This sample preparation program can effectively improve the beam intensity of CaF-3.The experimental results show that with these settings the41Ca/40Ca background level of rock samples is less than 8×10-14.; 国家自然科学基金资助项目(11265005); 广西自然科学基金资助项目(2012GXNSFBA053001) |
| 语种 | zh_CN |
| 内容类型 | 期刊论文 |
| 源URL | [http://dspace.xmu.edu.cn/handle/2288/104599]  |
| 专题 | 海洋环境－已发表论文 |
| 推荐引用方式 GB/T 7714 | 窦亮,何明,董克君,等. 加速器质谱测量岩石样品中~(41)Ca的初步研究, Preliminary Study of ~(41)Ca-AMS Measurement in Rock Samples[J],2013. |
| APA | 窦亮.,何明.,董克君.,武绍勇.,李振宇.,...&姜山.(2013).加速器质谱测量岩石样品中~(41)Ca的初步研究.. |
| MLA | 窦亮,et al."加速器质谱测量岩石样品中~(41)Ca的初步研究".(2013). |
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