Nuclear Data Sheets for A=139

作者：Joshi Paresh K; Singh Balraj; Singh Sukhjeet; Jain Ashok K

来源：Nuclear Data Sheets, 2016, 138: 1-292.

DOI：10.1016/j.nds.2016.11.001

The experimental nuclear spectroscopic data for known nuclides of mass number 139 (Sn, Sb, Te, I, Xe, Cs, Ba, La, Ce, Pr, Nd, Pm, Sm, En, Gd, Tb, Dy) have been evaluated and presented together with adopted properties for levels and gamma rays. This evaluation represents a revision of previous one (2001Bu16) by T.W. Burrows. Since then extensive new data have become available for many A=139 nuclides although, no excited state data are yet available for Sn-139, Sb-139, Tb-139, and Dy-139. The decay schemes of Sn-139, Sb-139, I-139, Tb-139 and Dy-139 nuclei are not known, and those for Gd-139 and Eu-139 are poorly known. Particle transfer data are available for Ba-139, La-139, Ce-139 and Pr-139. Limited high spin data are available for Te-139, I-139, Cs-139, Ba-139, La-139 and Ce-139, while such data are extensive for Pr-139, Nd-139, Pm-139, Sm-139, Eu-139 and Gd-139. Recent Pm-139 high spin data from two independent studies using the same reaction and similar beam energy are in conflict and could be improved using state of the art large gamma detector arrays in contrast to the smaller arrays currently used. Cases for which no new experimental information are available since the last update have undergone checking resulting in some changes in the current work, but for the most part these are taken from the previous evaluations. Thus, the present work has greatly benefited from all prior NDS evaluations (2001Bu16, 1989Bu12, 1981Pe04, 1974Gr46), but at the same time data presented herein supersede those in the earlier evaluations.

• 出版日期2016-12