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1)  Longitudinal relaxation
纵向弛豫
1.
The effects of longitudinal relaxation on NMR lineshape;
纵向弛豫对核磁共振线型的影响
2.
A mathematical formula of the relation between longitudinal relaxation or transverse relaxation and the flip angle of magnetization vector was deduced and its programme was designed.
首先推导出纵向弛豫和横向弛豫与磁化强度矢量偏转角关系的数学表达式。
3.
The longitudinal relaxation times of some dyes are measured experimentally and the results are discussed.
详细分析了用非相干光时延四波混频研究物质纵向弛豫过程的原理和技术关键,从实验上测定了几种染料分子的纵向弛豫时间并作了讨论。
2)  longitudinal relaxation time
纵向弛豫时间
1.
Objective To study longitudinal relaxation time of lung in MRI for normal adult.
目的 对正常成人肺脏MRI纵向弛豫时间进行测量研究。
2.
Strong radiation damping effects in highly polarized system often make the common methods of longitudinal relaxation time determination invalid.
在高极化自旋体系中由于强辐射阻尼效应的影响,常规的纵向弛豫时间(T1)测量方法不再适用或需修改。
3)  longitudinal relaxation
纵弛豫
4)  Orientational relaxation
取向弛豫
5)  transverse relaxation
横向弛豫
1.
A mathematical formula of the relation between longitudinal relaxation or transverse relaxation and the flip angle of magnetization vector was deduced and its programme was designed.
首先推导出纵向弛豫和横向弛豫与磁化强度矢量偏转角关系的数学表达式。
6)  proton spin lattice relaxation time
纵弛豫时间
补充资料:“质子-电子偶极-偶极”质子弛豫增强


“质子-电子偶极-偶极”质子弛豫增强


  物理学术语。原子核外层中不成对的电子质量小,但磁动性很强,可使局部磁场波动增强,促使氢质子弛豫加快,从而使T1和T2缩短,这种效应即为PEDDPRE。过渡元素和镧系元素大部分在d和f轨道有多个不成对电子,所以其离子往往具有PEDDPRE,可用来作顺磁性对比剂,如钆(Gd)。Gd在外层有7个不成对电子,具有很强的顺磁性。
  
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