Spectroscopic Measurement of the Nuclear Spin and Magnetic Moment of 39 Ar

摘要: The nuclear spin and magnetic moment of argon 39 have been determined by high-resolution optical spectroscopy, using a pressure-swept Fabry–Perot interferometer, photoelectric detection, digital data processing. 39Ar was produced through the 39K(n,p)39Ar reaction pile neutron irradiation KF. spectrum excited in miniature hollow cathode cooled liquid nitrogen. Helium used as carrier gas. By application intensity rules, to be 72, agreement with shell model. Anomalous values which were measured from some lines shown caused self-absorption states. Using A value −23.76 ± 0.04 mK (1 = 10−3 cm−1) for 1s2 level previous result 37Ar has −1.3 0.3 magnetons. B is +2.80 0.02 mK. Several structures isotope shifts are reported.