Nuclear Spins and Magnetic Moments ofRb85andRb87

摘要: The atomic beam method of "zero moments" has been applied to measure the nuclear spins and h.f.s. separations, $\ensuremath{\Delta}\ensuremath{\nu}$, $^{2}S_{\frac{1}{2}}$ states ${\mathrm{Rb}}^{85}$ ${\mathrm{Rb}}^{87}$. We find spin be 5/2 that ${\mathrm{Rb}}^{87}$ 3/2, in agreement with most probable values given by Kopfermann. With value $\ensuremath{\Delta}\ensuremath{\nu}$ for sodium as a standard we were able $\ensuremath{\Delta}\ensuremath{\nu}$'s Rb isotopes precision 1 percent. these 0.1018 ${\mathrm{cm}}^{\ensuremath{-}1}$ 0.229 ${\mathrm{Rb}}^{87}$, compared Kopfermann's 0.105 0.240 respectively. magnetic moments calculated from modified Goudsmit formula, are 1.44 magnetons 2.92 ratio moments, $\frac{{\ensuremath{\mu}}_{87}}{{\ensuremath{\mu}}_{85}}$, is found 2.026, 0.2 Cs was also measured result, 0.307 ${\mathrm{cm}}^{\ensuremath{-}1}$, excellent 0.3067 Granath Stranathan.