Optimization Method for Passive Pole Pieces Design
The pole pieces of permanent magnet require precise design since the highly uniform magnetic field are needed for nuclear magnetic resonance imaging. A new method has been introduced in this paper to optimize the shape of passive pole pieces. Based on Filter Equation 1, 3 a field alteration function is proposed in this method to indicate the magnetic field change according to the pole pieces variation. And this function is optimized with BFGS method to determine the shape of pole pieces which produce the most uniform magnetic field. Simulation indicates that this method is much better than the optimization methods in previous published papers with respect to the speed and field uniformity.
Le Wang Haitao Zhu Xiaoyu Song Zhe Jin Xin Tang Weiming Wang
Institute of Heavy Ion Physics, and Beijing Key Laboratory of Medical Physics and Engineering Physic Key Laboratory for Quantum Information and Measurements, Ministry of Education School of Electronics
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
228-233
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）