Calculating Efficient Noise Resistance of RF Coils for Low Field MRI Systems
An analytical method to calculate efficient noise resistance of RF coils in low field MRI systems is presented. Coil self-resistance and sample resistance are evaluated respectively. Using this method, efficient noise at 12.72MHz of solenoid coil and square-shaped surface coil are calculated. The results show that the coil self-resistance and sample resistance of surface coils are comparable. Thus, both parts of efficient resistance should be calculated when optimizing signal-to-noise ratio to design geometries of RF coils.
Y. Li X. H. Jiang
Department of Electronical Engineering, Tsinghua University, Beijing 100871, China
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
1912-1915
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）