【摘要】 用高纯锗γ谱仪对一些稀土矿中的¹³⁸La和¹⁷⁶Lu含量进行了测量。发现在一个稀土矿中存在着丰富的¹³⁸La和¹⁷⁶Lu,而且它们的含量相差很大,它们在矿中的存在也并不表现正相关性。同时发现在这个稀土矿中⁴⁰K的含量特别低,这可能对辐射防护和研究稀土矿的形成是有用的。更多还原

【Abstract】 The contents of 138La and 176Lu in some rare earth mines have been measured with a HPGe γ spectrometer. The measurements show that the contents of 138La and 176Lu in one rare earth mine are remarkably different from those in the other and they do not display a proportional relation, and that the contents of 40K in this mine are very low.更多还原