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Does Low-field NMR Has Radiation Damage?

FAQ

Does Low-field NMR Has Radiation Damage?

 
No, NMR has no radiation damage.
NMR is different from X-ray generator and CT in principle. X-ray generator and CT all need the X-ray to irradiate tissue and accept the X-ray which has absorbed by tissue to obtain the information. X-ray is the source of the man-made radiation damage. The principle of NMR is using a RF pulse to inspire H proton in high magnetic field to create the NMR signals. The process won’t produce high energy radial, the word nuclear of NMR is refer to H proton, without relationship with nuclear radiation,so NMR has no radiation damage.
Low-field NMR instruments’ magnetic field is lower than 0.5T. NIUMAG’s magnet has thickening iron shield and special made magnet cabinet. It prevents the magnet field disseminating, the magnetic field and excited electromagnetic wave is limited in the magnet cabinet, so it is very safe.