Harpen M D
University of South Alabama, Department of Radiology, Mobile 36617.
Med Phys. 1990 May-Jun;17(3):362-8. doi: 10.1118/1.596516.
We present a solution to Maxwell's equations which describe the inductive interaction between an irregularly shaped sample in a magnetic resonance imaging rf coil. It is demonstrated that the inductive interaction between the coil and sample can induce charge densities on the sample surface and that these charge densities lead to observable changes in coil Q, resonant frequency offset and sample power dissipation.
我们提出了一种麦克斯韦方程组的解决方案,该方程组描述了磁共振成像射频线圈中不规则形状样本之间的感应相互作用。结果表明,线圈与样本之间的感应相互作用会在样本表面感应出电荷密度,并且这些电荷密度会导致线圈品质因数、共振频率偏移和样本功率耗散出现可观测的变化。