Summary
The spin relaxation times of an optically oriented Na vapor diffusing in buffer gases of He, H2, and N2 have been measured, and from these times the spin disorientation cross-sections of atomic Na colliding with He, H2, and N2, and the mutual diffusion constants for Na in these gases have been determined. The spin relaxation times of a Na vapor in mixtures of He and dilute amounts of A, Kr, and Xe have been measured and the spin disorientation cross-sections for Na colliding with A, Kr. and Xe have been determined. In an Appendix, the relaxation time of Na in He is used to set an upper limit on the nuclear electric dipole moment of23Na.
Riassunto
Si sono misurati i tempi di rilassamento dello spin di un vapore di Na otticamente orientato che si diffonde in un gas tampone di He, H2 e N2, e da questi tempi si sono determinate le sezioni d’urto del disorientamento dello spin del Na atomico con He, H2 e N2 e le costanti di diffusione mutua del Na in questi gas. Si sono misurati i tempi di rilassamento dello spin del vapore di Na in miscele di He e quantità diluite di A, Kr e Xe e le sezioni d’urto del disorientamento dello spin per Na che collide con A, Kr e Xe. In una Appendice, si usa il tempo di rilassamento del Na in He per porre un limite superiore al momento nucleare di dipolo elettrico del23Na.
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References
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Ramsey, A.T., Anderson, L.W. Spin relaxation in an optically oriented sodium vapor. Nuovo Cim 32, 1151–1157 (1964). https://doi.org/10.1007/BF02726057
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DOI: https://doi.org/10.1007/BF02726057