A system such as a nucleus may consist of many particles coupled together so that in any given state, the nucleus possesses a total magnetic moment and a total angular momentum J. Two vectors may be taken as parallel. | Applied physics group, Physics department, CBNU Contents: Introduction Theory basis The basis of experiments Summary Next slide Magnetic resonance Magnetic resonance is a phenomenon found in magnetic systems that possess both magnetic moments and angular momentum. Magnetic resonance is an analytical technique based on a property of matter called spin. Magnetic resonance techniques include: Magnetic resonance imaging (MRI), Nuclear magnetic resonance (NMR), Electron spin resonance (ESR), Electron paramagnetic resonance (EPR). Magnetic resonance techniques are generally non-invasive and non-destructive. Next slide What is the magnetic resonance? Applied physics group, Physics department, CBNU Applied physics group, Physics department, CBNU Next slide MRI is used by clinicians to produce tomographic images of the inside of the human body. MRI is also used by scientists to study materials as it is a non-destructive imaging technique. NMR is used by scientists to study the structure . | Applied physics group, Physics department, CBNU Contents: Introduction Theory basis The basis of experiments Summary Next slide Magnetic resonance Magnetic resonance is a phenomenon found in magnetic systems that possess both magnetic moments and angular momentum. Magnetic resonance is an analytical technique based on a property of matter called spin. Magnetic resonance techniques include: Magnetic resonance imaging (MRI), Nuclear magnetic resonance (NMR), Electron spin resonance (ESR), Electron paramagnetic resonance (EPR). Magnetic resonance techniques are generally non-invasive and non-destructive. Next slide What is the magnetic resonance? Applied physics group, Physics department, CBNU Applied physics group, Physics department, CBNU Next slide MRI is used by clinicians to produce tomographic images of the inside of the human body. MRI is also used by scientists to study materials as it is a non-destructive imaging technique. NMR is used by scientists to study the structure and dynamics of molecules. ESR and EPR are used by scientists to study structure and reactions of free radicals. Magnetic resonance technique applications Applied physics group, Physics department, CBNU Next slide Applied physics group, Physics department, CBNU Next slide A system such as a nucleus may consist of many particles coupled together so that in any given state, the nucleus possesses a total magnetic moment and a total angular momentum J. Two vectors may be taken as parallel = J where is a scalar called the “gyromagnetic ratio” In quantum theory, we have J = I where I stands for a dimensionless angular momentum operator. The basis of magnetic resonance Applied physics group, Physics department, CBNU Next slide As an external magnetic field is applied, this field produces an interaction energy of nucleus of amount - H. The Hamiltonian: H = - H H = - H0Iz in the z-direction, and E = H0m with m = I, I-1, .-I (2I + 1 values) Applied physics group, Physics department,
