两类带选择激发脉冲激发轮廓的模拟比较  

SLMULATED COMPARISON FOR TWO KINDS OF BAND SELECTIVE PULSES

作　　者：庞玉玺[1] 刘爱琢[1] 裴奉奎[1] 

机构地区：[1]中国科学院长春应用化学研究所应用谱学开放实验室

出　　处：《波谱学杂志》1994年第4期337-343,共7页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金

摘　　要：本文用Ｂｌｏｃｈ方程模拟了ＢＵＲＰ族脉冲￣［１－３］和高斯串族脉冲￣［４，５］（Ｇａｕｓｓｉａｎｐｕｌｓｅｃａｓｔａｌｅｓ）的激发轮廓，系统地比较了这两类脉冲的选择性及其对射频场非均匀性的依赖性，给出了选择性最佳的脉冲。The excitation profile of BURP family pulses and Gaussian pulse cascades is simu-lated based on the Bloch equation. The selectivity of the various Dulses from these twokinds of pulses are compared systematically．The effect of inhomogeneity of theradiofrequency field B_1 on excitation profile is also simtilated． The pulses withoptimum selectivity are suggested.

关 键 词：BURP脉冲 高斯串脉冲 计算机模拟 激发脉冲 

分 类 号：O482.532[理学—固体物理]