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March 18, 2026Materials0 citationsOpen Access

Pump-Induced Biphasic Relaxation Model of Xe Spin in Nuclear Magnetic Resonance Gyroscopes

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SJShangtao JiangTWT. F WangXQXuyang Qiu

Key Points

  • The aim is to develop a model that describes how the relaxation of Xe spins is influenced by pump effects in NMR gyroscopes.
  • Proposed a pump-induced biphasic relaxation model for 129Xe spins.
  • Analyzed electron polarization distribution using Bloch–Torrey equations.
  • Evaluated polarization through NMR frequency shift measurements.
  • Experimental results confirmed the theoretical model of quadratic dependence between relaxation rate and pump intensity.
  • Demonstrated significant insights into the dynamics of Xe spin in NMRG applications.

Abstract

The spin relaxation rate of Xe isotopes is a key characteristic of nuclear magnetic resonance gyroscopes (NMRGs). A pump-induced biphasic relaxation (PBR) model is proposed to describe the pump dependence of the transverse relaxation rate of 129Xe nuclear spin. The distribution of electron polarization is theoretically analyzed based on the Bloch–Torrey equations and the volume-averaged polarization is evaluated through NMR frequency shift measurements. Experimental results confirm the theoretical quadratic dependence between Γ and

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Cite This Study

Jiang et al. (2026) studied this question.

synapsesocial.com/papers/69ba429c4e9516ffd37a317bhttps://doi.org/10.3390/ma19061143
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