Experimental nuclear structure and decay data are evaluated for all of 14 known nuclides of mass 194 (Ta, W, Re, Os, Ir, Pt, Au, Hg, Tl, Pb, Bi, Po, At, Rn). Detailed evaluated spectroscopic information is presented for each reaction and decay experiment, and by combining all the available data, recommended values are provided for energies, spins and parities and half-lives of levels, together with energies, branching ratios and multipolarities of gamma radiations from the levels, and characteristics of beta and alpha radiations in radioactive decays. No excited states have yet been identified in ¹⁹⁴Ta, ¹⁹⁴W, and ¹⁹⁴Rn. Only limited spectroscopic data are available for ¹⁹⁴Re, with a 45−μs isomer identified, but its absolute energy yet to be determined. Only two levels at unknown absolute energies are reported for ¹⁹⁴At, both of which are isomeric but neither can be unambiguously identified as the ground state. Data are scarce for ¹⁹⁴Os, ¹⁹⁴Bi and ¹⁹⁴Po, while ¹⁹⁴Pt, ¹⁹⁴Au, ¹⁹⁴Hg, ¹⁹⁴Tl and ¹⁹⁴Pb are well studied through decays and reactions. For ¹⁹⁴Ir, although a major (n, γ), E=thermal study and two particle-transfer studies provide large amounts of spectral data, still several problematic issues are found in the assignment of multipolarities for the secondary gamma transitions in the (n, γ) study by 2008Ba25, 1998Ba85 and 1998Ba42, all from the same group. Some issues have been resolved by the evaluators, but we suggest that further experimental work is needed on ¹⁹⁴Ir structure to resolve standing issues, and verify the conclusions made by 2008Ba25. Our attempt to contact the prime authors of the 2008Ba25 paper was not successful. The present work supersedes all the earlier evaluations of A=194 nuclides by 2006Si17, 1996Br26, 1989Si01 and 1972Au11.

评估了所有 14 种已知质量为 194 的核素（Ta、W、Re、Os、Ir、Pt、Au、Hg、Tl、Pb、Bi、Po、At、Rn）的实验核结构和衰变数据。为每个反应和衰变实验提供了详细评估的光谱信息，并通过结合所有可用数据，提供了能量、自旋和奇偶校验和能级半衰期的推荐值，以及来自 γ 辐射的能量、分支比和多极性放射性衰变中 β 和 α 辐射的水平和特征。在¹⁹⁴ Ta、¹⁹⁴ W 和¹⁹⁴ Rn 中尚未发现激发态。只有有限的光谱数据可用于¹⁹⁴ Re，具有 45− μs 异构体已确定，但其绝对能量尚未确定。对于¹⁹⁴ At，仅报告了两个绝对能量未知的能级，这两个能级都是同分异构体，但都不能明确确定为基态。¹⁹⁴ Os、¹⁹⁴ Bi 和¹⁹⁴ Po 的数据很少，而¹⁹⁴ Pt、¹⁹⁴ Au、¹⁹⁴ Hg、¹⁹⁴ Tl 和¹⁹⁴ Pb 通过衰变和反应得到了很好的研究。对于¹⁹⁴ Ir，虽然大调 (n, γ)，E=热研究和两个粒子转移研究提供了大量的光谱数据，但在2008Ba25、1998Ba85 和 1998Ba42的 (n, γ ) 研究中，在为次级伽马跃迁分配多极性时仍然存在几个问题，都来自同一组。评估人员已经解决了一些问题，但我们建议需要对¹⁹⁴ Ir 结构进行进一步的实验工作以解决长期存在的问题，并验证 2008Ba25 得出的结论。我们尝试联系 2008Ba25 论文的主要作者没有成功。目前的工作取代了 2006Si17、1996Br26、1989Si01 和 1972Au11 之前对 A=194 核素的所有评估。