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采用低K含量的高纯金属材料作为靶锥或载体对于拓展加速器质谱(AMS)的测量范围具有重要意义。本试验利用加速器质谱(AMS)测量了Al(99.999%)、Cu(99.999%)、Au(99.999%)、Ag(99.999%)等高纯金属中K的含量。K的负离子束流较小,试验中采用纯的金属粉末与K2CO3的混合物(质量比1﹕1)
The use of low-K high-purity metallic materials as target cones or carriers is of great importance for expanding the measurement range of accelerator mass spectrometry (AMS). In this study, the content of K in high purity metals such as Al (99.999%), Cu (99.999%), Au (99.999%) and Ag (99.999%) was measured by accelerator mass spectrometry (AMS) K anion beam is small, the test using a mixture of pure metal powder and K2CO3 (mass ratio of 1: 1)