Phys.Rev.Lett. 83, 4510 (1999)

M.P.Bradley, J.V.Porto, S.Rainville, J.K.Thompson, D.E.Pritchard

Penning Trap Measurements of the Masses of ¹³³Cs, ^{87, 85}Rb, and ²³Na with Uncertainties ≤ 0.2 ppb

ATOMIC MASSES ²³Na, ^85,87Rb, ¹³³Cs; measured masses; deduced fine structure constant. Penning trap single ion mass spectrometry.

doi: 10.1103/PhysRevLett.83.4510