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Что такое ЯМР?
Ядерный магнитный резонанс (ЯМР) — физический процесс, при котором спиновый уровень атомного ядра с ненулевым магнитным моментом подвергается зеемановскому расщеплению под действием внешнего магнитного поля, и резонанс поглощает определенную частоту радиочастотного излучения. Этот процесс называется ядерным магнитным резонансом.. NMR instruments have become routine analytical testing methods in organic chemistry research, and in medical practice, ЯМР (nuclear magnetic resonance imaging) instruments have also become diagnostic tools for certain diseases.
Why NMR education is important?
The importance of nuclear magnetic resonance teaching is mainly reflected in the following aspects:
1. Understand the principle of nuclear magnetic resonance: Nuclear magnetic resonance is a technology that uses the magnetic moment of an atomic nucleus to detect energy level transitions that occur in a strong magnetic field. Through teaching, it can help students understand the basic principles of nuclear magnetic resonance, thus laying the foundation for subsequent learning and application.
2. Mastering nuclear magnetic resonance technology: Nuclear magnetic resonance technology has applications in multiple fields, such as medical diagnosis and chemical research. Through teaching, students can master the practical application and operational skills of nuclear magnetic resonance technology, laying a foundation for future scientific research and work.
3. Cultivating scientific research ability: Nuclear magnetic resonance technology is one of the commonly used methods in scientific research work. Through teaching, students’ scientific research ability can be cultivated, and their understanding and operational level of scientific research work can be improved.
4. Expanding knowledge field: Nuclear magnetic resonance technology is an interdisciplinary field of physics, химия, biology, and other disciplines. Through teaching, it can help students expand their knowledge field and improve their overall quality.
In short, nuclear magnetic resonance teaching is of great significance for improving students’ theoretical level, практические способности, and comprehensive quality.
NMR system for education
EDUMR is a desktop NMR device designed for MRI experimental teaching. Courses to teach NMR principles and experiments through MRI demonstration can be created by including EDUMR in physical corresponding majors (modern physics, Прикладная физика, радиофизика, electronic engineering, и т. д.) or medical corresponding majors (large-scale medical apparatus, технология медицинской визуализации, биомедицинская инженерия, и т. д.). Extensive experimental courses and majors like NMR engineering related to hardware structure can also be established with through the use of EDUMR.
Education NMR experiments
1. Mechanical and electronic shimming
2. Lamor frequency measurement by hard pulse FID sequence
3. FID sequence signal in rotating coordination system
4. 1D-processing and gain adjustment of FID signal
5. Hard pulse RF measurement with hard pulse echo sequence
6. Soft pulse RF measurement with soft pulse FID sequence
7. Soft pulse echo sequence
8. T1 relaxation time measurement using inversion recovery method
9. T1 relaxation time measurement using saturation recovery method
10. T2 relaxation time measurement using hard pulse CPMG sequence
11. MRI experiments
