当前位置: X-MOL 学术Nucl. Data Sheets › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Nuclear Data Sheets for A=245
Nuclear Data Sheets ( IF 3.7 ) Pub Date : 2023-05-08 , DOI: 10.1016/j.nds.2023.04.001
C.D. Nesaraja

Available information pertaining to the nuclear structure of ground and excited states for all known nuclei with mass numbers A=245 have been compiled and evaluated. The adopted level and decay schemes, as well as the detailed nuclear properties and configuration assignments based on experimental data, are presented for these nuclides. When there are insufficient data, expected values from systematics of nuclear properties and/or theoretical calculations are utilized. Unexpected or discrepant experimental results are also noted. Since the last evaluation, new rotational bands in 245Pu have been observed to high spin from transfer reaction 244Pu(209Bi, 208Biγ) by 2014Ho16. While in 245Am, the 249Bk α decay measurements by 2013Ah03 added a new rotational band based on π3/2[521] configuration. The 245Pu β decay scheme is basically what was proposed in the late 60's and 47 γ rays have still not been placed. In 245Cm, precise alpha energies and intensities were measured by 2015Ah03 in 249Cf α decay. Their reported alpha energies of the main α group were about 2 keV lower than in the previous evaluation. The spin and parity of the g.s. of 245Es is still ambiguous as more detailed information on the decay is needed. With the production of 249No via fusion evaporation reaction by groups in Dubna and GSI, it's alpha decay was studied and some properties of the daughter 245Fm were published and included in this evalaution. Information on the other nuclides is scarce and not much has been investigated since the last evaluation. A summary and compilation of the discovery of the various nuclides in this mass region is given in: 2013Fr02 (245Pu, 245Am, 245Cm, 245Bk, 245Cf), 2011Me01 (245Es), and 2013Th02 (245Md, 245Fm).



中文翻译:

A=245 的核数据表

有关质量数 A=245 的所有已知原子核的基态和激发态核结构的可用信息已被编译和评估。针对这些核素,介绍了采用的能级和衰变方案,以及基于实验数据的详细核特性和配置分配。当数据不足时,使用核特性系统学和/或理论计算的预期值。还记录了意外或不一致的实验结果。自上次评估以来,到 2014Ho16,已观察到245 Pu 中新的旋转带从转移反应244 Pu(209 Bi,208 Bi γ)到高自旋。而在245Am, 2013Ah03 的249 Bk α衰变测量添加了一个基于π 3/2[521] 配置的新旋转带。245 Pu β 衰变方案基本上是60 年代后期提出的方案,47 γ射线至今仍未放置。在245 Cm 中,精确的 alpha 能量和强度由 2015Ah03 在249 Cf α衰变中测量。他们报告的主要α组的 alpha 能量比之前的评估低约 2 keV。245的gs的自旋和宇称Es 仍然不明确,因为需要有关衰减的更详细信息。随着 Dubna 和 GSI 的小组通过聚变蒸发反应生产249 No,研究了它的 α 衰变,并发表了子体245 Fm 的一些特性并将其包括在本次评估中。关于其他核素的信息很少,自上次评估以来调查的不多。在此质量区发现各种核素的总结和汇编见:2013Fr02 ( 245 Pu, 245 Am, 245 Cm, 245 Bk, 245 Cf), 2011Me01 ( 245 Es), 和 2013Th02 ( 245 Md, 245调频)。

更新日期:2023-05-08
down
wechat
bug