In this paper, a measurement of the atomic mass and mass excess of ##IMG## [http://ej.iop.org/images/0954-3899/47/8/085104/gab98e3ieqn1.gif] {${}_{75}{}^{190}\mathrm{Re}$} are presented. This isotope and ##IMG## [http://ej.iop.org/images/0954-3899/47/8/085104/gab98e3ieqn2.gif] {${}_{77}{}^{192}\mathrm{Ir}$} were produced at the Maier-Leibnitz Laboratory (MLL) in Munich in the 192 Os( d , α ) 190 Re and 194 Pt( d , α ) 192 Ir reactions. The Q3D magnetic spectrograph was used to measure the momenta of the α -particle ejectiles in order to reconstruct states in both 190 Re and 192 Ir. A mass calibration was performed using known energy levels in 192 Ir. These measurements were used to obtain a new value of the mass excess of 190 Re, −35583 ± 5 keV. The previously known literature value is −35640 ± 70 keV.

中文翻译：

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Re-190的质量测量

本文对## IMG ##的原子质量和质量过量进行了测量[http://ej.iop.org/images/0954-3899/47/8/085104/gab98e3ieqn1.gif] {$ {}出现_ {75} {} ^ {190} \ mathrm {Re} $}。这个同位素和## IMG ## [http://ej.iop.org/images/0954-3899/47/8/085104/gab98e3ieqn2.gif] {$ {} _ {77} {} ^ {192} \ mathrm {Ir} $}是在慕尼黑的Maier-Leibnitz实验室（MLL）上以192 Os（d，α）190 Re和194 Pt（d，α）192 Ir反应生成的。为了重建190 Re和192 Ir的状态，使用Q3D磁谱仪测量α粒子弹的动量。使用192 Ir中的已知能级进行质量校准。这些测量用于获得190 Re，-35583±5 keV的质量过量的新值。先前已知的文献值为-35640±70 keV。