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扩散敏感梯度磁场对核自旋运动的影响

Effect of diffusion sensitive gradient magnetic field on the movement of spins
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摘要 由于磁场与核自旋的相互作用,处于不均匀磁场中的核自旋将受到一个外力的作用。本文研究了处于扩散敏感梯度磁场中核自旋所受附加外力,并分析了这个外力对核自旋自由扩散的影响。结论是这种力是快速涨落力,强梯度场中核自旋的运动仍然是自由布朗运动。 Spin in unhomogeneous magnetic field experiences an additional external force due to the interaction of the mag- netic field and spin. The effect of powerful diffusion sensitive gradient magnetic field on the movement of spin was studied. This additional force is a rapidly fluctuating force, the movement of spins is still free Brownian movement.
出处 《中国医学影像技术》 CSCD 北大核心 2005年第10期1603-1605,共3页 Chinese Journal of Medical Imaging Technology
基金 国家自然科学基金资助项目(10275003) 北京市共建项目(SYS100010401)。
关键词 核自旋 梯度场 扩散 Spin Gradient field Diffusion
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