Evaluated nuclear structure and decay data for all nuclei with mass number A=201 (²⁰¹Os, ²⁰¹Ir, ²⁰¹Pt, ²⁰¹Au, ²⁰¹Hg, ²⁰¹Tl, ²⁰¹Pb, ²⁰¹Bi, ²⁰¹Po, ²⁰¹At, ²⁰¹Rn, ²⁰¹Fr, ²⁰¹Ra) are presented. All available experimental data are compiled and evaluated, and best values for level and γ-ray energies, quantum numbers, lifetimes, γ-ray intensities and transition probabilities, as well as other nuclear properties, are recommended. Inconsistencies and discrepancies that exist in the literature are discussed. A number of computer codes (https://www-nds.iaea.org/public/ensdf_pgm/index.htm) developed by members of the NSDD network were used during the evaluation process. For example, the reported absolute γ-ray emission probabilities and their uncertainties in various decay data sets were determined using the GABS code. This work supersedes the earlier evaluation by F.G. Kondev (2007Ko06), published in Nuclear Data Sheets 108, 365 (2007).

评估了质量数 A=201 ( ²⁰¹ Os, ²⁰¹ Ir, ²⁰¹ Pt, ²⁰¹ Au, ²⁰¹ Hg, ²⁰¹ Tl, ²⁰¹ Pb, ²⁰¹ Bi, ²⁰¹ Po, ²⁰¹ At, ²⁰¹ Rn, ²⁰¹ Fr, ²⁰¹ Ra) 被提出。所有可用的实验数据都经过编译和评估，能级和γ射线能量、量子数、寿命、γ的最佳值射线强度和跃迁概率，以及其他核属性，是推荐的。讨论了文献中存在的不一致和差异。在评估过程中使用了由 NSDD 网络成员开发的许多计算机代码 (https://www-nds.iaea.org/public/ensdf_pgm/index.htm)。例如，报告的绝对γ射线发射概率及其在各种衰变数据集中的不确定性是使用GABS代码确定的。这项工作取代了 FG Kondev (2007Ko06) 在核数据表108、365 (2007) 中发表的早期评估。