1993•Acta Physica Sinica (Overseas Edition)Open access

Measurements of relaxation of spin polarized 129 Xe nuclei in high magnetic fields

Mingxin Zhao, Zidong Liu, Liyun Li, Li Senlin, Zhenghua Wu, Zeng Xi-zhi

Abstract

We observed the NMR signal of low-pressure gas 129 Xe by laser enhanced method on an MSL-400 NMR spectrometer and measured nuclear spin relaxations of 129 Xe gas at various temperatures. The relaxation rate constant of 129 Xe- 133 Cs spin exchange was obtained as (6.8 ± 0.5) × 10 -16 cm -3 s -1 .

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Key concepts: Relaxation (psychology), Xenon, Nuclear magnetic resonance, Isotopes of xenon, Spin (aerodynamics), Atomic physics, Materials science, Helium-3