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1.发明公开Multidimensional NMR spectroscopy using switched acquisition time gradients for multiple coherence transfer pathway detection 失效多维NMR谱，用于测量多个相干性广播的数据采集期间接通的梯度。
公开(公告)号：EP0507551A1
公开(公告)日：1992-10-07
申请号：EP92302831.0
申请日：1992-03-31
IPC分类号： G01R33/48
CPC分类号： G01R33/4833
摘要： A signal function S(t 1 , t 2 ) is obtained from a plurality of coherence transfer pathways in a single acquisition by preparing a molecular system in a coherent non-equilibrium state, and alternately and sequentially detecting signals at individual sampling points, in t 2 , from the plurality of coherence transfer pathways by using gradient refocusing of a new pathway after signal detection at a sampling point in another pathway. The gradient encoding and refocusing of coherence pathways can use inhomogeneous rf-pulses (B 1 gradients) or B 0 field gradients. The coherence transfer pathways can be sequentially selected in an arbitrary order.
摘要翻译： 信号函数S（T1，T2）由相干传递途径的单次采集多个由在相干非平衡状态制备分子系统获得的，并且可替换地和顺序地检测T2个体在采样点的信号，来自 相干传递途径通过使用信号检测之后的新途径的梯度重新聚焦在另一途径中的采样点的多元性。 梯度编码和相干性途径的重聚焦可以使用不均匀的RF脉冲（B1梯度）或B0场梯度。 相干转移路径可以在顺序依次选择为任意的。
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2.发明公开Method and apparatus for obtaining pure-absorption two-dimensional lineshape data for multidimensional NMR spectroscopy using switched acquisition time gradients 失效用于数据采集期间由切换梯度的手段获得用于多维核磁共振光谱二维的，纯吸收线形状数据的方法和装置。
公开(公告)号：EP0522796A1
公开(公告)日：1993-01-13
申请号：EP92306126.1
申请日：1992-07-02
IPC分类号： G01R33/46
CPC分类号： G01R33/4633 , G01R33/4608
摘要： A signal function S(t₁, t₂) is obtained from a plurality of coherence transfer pathways in a single acquisition by preparing a molecular system in a coherent non-equilibrium state, and alternately and sequentially detecting signals at individual sampling points, in t₂, from the plurality of coherence transfer pathways by using gradient refocusing of a new pathway after signal detection at a sampling point in another pathway. A frequency domain spectrum S(ω₁,ω₂) is another pathway. A frequency domain spectrum S(ω₁,ω₂) is constructed by first Fourier transforming the time domain signals S(t₁, t₂) in the t₂ dimension and producing real and imaginary components which modulate as sine and cosine signals in t₁. The real (ω₂) cosine (t₁) components are combined with the imaginary (ω₂)sine (t₁) components to form a complex data set S(t₁, ω₂) that is amplitude modulated in t₁. The complex data set is then Fourier transformed in the t₁ dimension to construct in frequency domain spectrum S(ω₁, ω₂) which contains construct in frequency domain spectrum S(ω₁, ω₂) which contains pure absorption lineshapes.
摘要翻译： 信号函数S（T1，T2）由相干传递途径的单次采集多个由在相干非平衡状态制备分子系统获得的，并且可替换地和顺序地检测T2个体在采样点的信号，来自 相干传递途径通过使用信号检测之后的新途径的梯度重新聚焦在另一途径中的采样点的多元性。 频域频谱S（ω-1，ω-2）是另一种途径。 频域频谱S（ω-1，ω-2）由第一傅立叶变换在T2尺寸的时域信号S（T1，T2），并产生其调节为T1正弦和余弦信号实和虚分量构成。 真正的（ω-2）的余弦（T1）成分相结合，与虚（ω-2）的正弦（T1）成分，以形成一个复杂的数据集S（T1，ω-2）那样被振幅在T1调制。 复杂的数据集然后傅立叶在T1尺寸转化的频域频谱S构建（σ-1，ω-2），其中包含频域频谱S构建体（ω-1，ω-2），其含有纯吸收线的形状。
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