Nuclear Data Sheets ( IF 2.8 ) Pub Date : 2022-07-12 , DOI: 10.1016/j.nds.2022.06.001 J.C. Batchelder , A.M. Hurst , M.S. Basunia
Evaluated spectroscopic data and level schemes from radioactive decay and nuclear reaction studies are presented for 186Lu, 186Hf, 186Ta, 186W, 186Re, 186Os, 186Ir, 186Pt, 186Au, 186Hg, 186Tl, 186Pb, 186Bi, and 186Po. This evaluation for A=186 supersedes the earlier evaluation 2003Ba44 by C. M. Baglin. Highlights of this evaluation are the following: 186Re: Revised %ε and %β− branches. New values are almost same as of the earlier ones. Adopted improved level energy for the long-lived (8+) isomer at 148.2 keV 5 based on the study reported in 2015Ma60 (187Re(n, 2nγ)) compared to 149 keV 7 in previous evaluation (2003Ba44). 186Hg: Discrepancies in the level schemes between 1992Po01 and 1993Ma02 remain to resolve experimentally, arise primarily due to the assigned multipolarity of the ≈607 keV γ transition between the 1228 keV bandhead and the 2+ 621 keV level. See general comments in Adopted Levels, Gammas dataset. 186Tl: From α decay studies, 2020St11 propose spin-parity (2−) for the g.s. and (7+) for the excited level at 0.0+x of level energy of 77 keV 56. From mass measurements, 2014Bo26 propose the (7−) level energy of 20 keV 40 earlier.
中文翻译:
A=186 的核数据表
提供了186 Lu、186 Hf、186 Ta、186 W、186 Re、186 Os、186 Ir、186 Pt、186 Au、186 Hg、186 Tl、186的放射性衰变和核反应研究的评估光谱数据和水平方案铅、186 Bi 和186 Po。此 A=186 的评估取代了 CM Baglin 的早期评估 2003Ba44。本次评估的重点如下:186 Re:修订后的 % ε和 % β -分支机构。新值与之前的值几乎相同。根据 2015Ma60 ( 187 Re(n, 2n γ ))中报告的研究,采用改进的长寿命 (8 + ) 异构体能级能量为 148.2 keV 5 ,而之前的评估 (2003Ba44) 为 149 keV 7 。186 Hg:1992Po01 和 1993Ma02 之间的能级方案差异仍有待通过实验解决,这主要是由于1228 keV 带头和 2 + 621 keV 能级之间 ≈607 keV γ跃迁的指定多极性所致。请参阅 Adopted Levels, Gammas dataset 中的一般评论。186 Tl:根据α衰变研究,2020St11 提出自旋宇称 (2 -) 用于 gs 和 (7 + ) 用于 77 keV 56 能级能量的 0.0+x 处的激发能级。根据质量测量,2014Bo26 较早提出了 20 keV 40 的 (7 - ) 能级能量。