With dielectric-constant gas thermometry, the molar polarizability of helium, neon, and argon has been determined with relative standard uncertainties of about 2 parts per million. A series of isotherms measured with the three noble gases and two different experimental setups led to this unprecedented level of uncertainty. These data are crucial for scientists in the field of gas metrology, working on pressure and temperature standards. Furthermore, with the new benchmark values for neon and argon, theoretical calculations, today about 3 orders of magnitude larger in uncertainty, can be checked and improved.

中文翻译：

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氦，氖和氩的极化性：气体计量学的新观点

用介电常数气体测温法测定氦，氖和氩的摩尔极化率，相对标准不确定度约为百万分之二。用三种稀有气体和两种不同的实验装置测量的一系列等温线导致了这种前所未有的不确定性。这些数据对于从事气体压力计量和温度标准的气体计量领域的科学家至关重要。此外，借助新的氖气和氩气基准值，可以检查和改进理论计算，目前的不确定性要大3个数量级。