Beta-decay energy and atomic mass of148Tb

The Q_EC values of the <img src="/fulltext-image.asp?format=htmlnonpaginated&src=R066X13726347750_html\10050_2005_Article_BF01292750_TeX2GIFIE1.gif" border="0" alt=" $${}^{148}Tb_{2^ - } $$ " /> ground-state and the <img src="/fulltext-image.asp?format=htmlnonpaginated&src=R066X13726347750_html\10050_2005_Article_BF01292750_TeX2GIFIE2.gif" border="0" alt=" $${}^{148}Tb_{9^ + } $$ " /> isomer were measured to the 5750(40) keV and 5846(50) keV, respectively, corresponding to a¹⁴⁸Tb ground-state mass-excess of ⦓70527(30) keV. The impact on mass calculations near¹⁴⁶Gd is discussed.