【摘要】 加速器质谱计具有很高的灵敏度，能测量样品中含量极微的杂质同位素．１０Ｂｅ是一种宇宙成因核，在地学、环境科学和宇宙学等领域有广泛的应用，它为纯β衰变核，端点能量低且半衰期很长．采用测量剩余核放射性方法确定１０Ｂｅ形成截面很困难．本文报道利用加速器质谱计技术测量１０Ｂｅ反应总截面的方法和结果，并对应用前景作了讨论．更多还原

【Abstract】 Accelerator mass spectrometry has ultra-high sensitivity and can be used to detect extremely low impurity contents in samples. 10Be is a cosmogenic nuclide. As a tracker, it has been widely applied to earth, environmental and cosmographic sciences. 10Be is a pure β emitter with low end-point energy and long half-life.Therefore 10Be formation cross section can hardly be determined by the method of measuring the radioactivity of the product nucleus. This article describes a method to determine 10Be formation cross section by AMS technique and discusses the possible applications of AMS to other rare event measurements in nuclear physics.更多还原