利用最优控制理论设计的用于四极核的多量子魔角旋转的改进激发方案。
Improved excitation schemes for multiple-quantum magic-angle spinning for quadrupolar nuclei designed using optimal control theory.
作者信息
Vosegaard Thomas, Kehlet Cindie, Khaneja Navin, Glaser Steffen J, Nielsen Niels Chr
机构信息
Center for Insoluble Protein Structures (inSPIN), University of Aarhus, DK-8000 Aarhus C, Denmark.
出版信息
J Am Chem Soc. 2005 Oct 12;127(40):13768-9. doi: 10.1021/ja054035g.
We have investigated the use of optimal control theory for the design of improved multiple-quantum excitation schemes for the popular multiple-quantum magic-angle spinning NMR experiment for quadrupolar nuclei with half-integer quadrupolar spin. The advantage of the new low-power experiments, termed OCFASTER, is demonstrated by sensitivity improvements approaching 50% for 87Rb in RbClO4 and RbNO3 as compared to FASTER and standard strong-pulse excitation schemes.
我们研究了最优控制理论在设计改进型多量子激发方案中的应用，该方案用于具有半整数四极自旋的四极核的流行多量子魔角旋转核磁共振实验。与FASTER和标准强脉冲激发方案相比，新的低功率实验（称为OCFASTER）的优势在于，对于高氯酸铷和硝酸铷中的87Rb，灵敏度提高了近50%。
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