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                          2. 当前位置: 皇冠体育世界杯 > 综合资讯
                            芬兰科学家开发出放射性甲烷测量新方法
                            文章来源:中国核工业报 日期:2019年03月21日

                              据《每日科学》网站 3月20日报道 2019年2月,赫尔辛基大学博士研究生卡尔胡在《光学快报》上发表了一篇文章,介绍了一种测定放射性甲烷的新方法。

                              在此之前,主要利用加速器质谱法测量放射性甲烷水平,使用的仪器昂贵而庞大。新方法是一种基于光谱学的光学方法,同加速器质谱法相比更经济、更灵活。新方法基于材料对不同波长的光吸收不同。通过测量材料吸收光的量,可以推断出它含有的成分。以前科学家曾使用光学方法来测量放射性二氧化碳,但到目前为止,光学方法还没有达到与加速器质谱法相同的精度。

                              该方法可在核电厂现场测量当地放射性甲烷的水平,而不再需要将样品送往实验室。

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