北京HI—13串列加速器质谱计测定^(36)Cl的研究

Determination of ^(36)C1 with the Beijing HI-13 tandem accelerator mass spectrometer

描述了中国原子能科学研究院的基于HI-13串列加速器建立的加速器质谱计装置和测定^(36)Cl的实验方法。利用这台加速器质谱计测定^(36)Cl/Cl同位素原子比值的灵敏度已好于3×10^(-15),对地下水、盐湖和铀矿石样品中的^(36)Cl进行了测定,这些样品的^(36)Cl/Cl同位素比为1.2×10^(-12)—2.2×10^(-14)。

The accelerator mass spectrometer based on Beijing HI-13 tandem accelerator and the experimental measurement of 36C1/C1 ratio have been described. The sensitivity of 36C1/C1 measurement with the AMS has been reached better than 3×10-15. The measured 36C1/C1 ratios range from 1.2×10-12 to 2.2×10-14 for the ground- water, salt lake and uranium ore samples.