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Nuclear magnetic resonance (NMR) medical magnetic ndfeb magnet magnetic force is introduced

by:Newland     2020-04-15
Magnetic resonance imaging system is the largest and the most important part is the magnet. Identify the magnet grade units called tesla ( Tesla) 。 Applied to the magnet, another common unit of measurement is gaussian ( 1 tesla = 10000 gauss) 。 Currently used in magnetic resonance imaging (fmri) magnets are 0. 5 tesla's to 2. Within the range of 0 tesla, that is, from 5000 to 20000 gauss. 【 Kyodo news agency, July 1 (Reuters) 】 Japan tsukuba, ibaraki prefecture of material and material research institutions such as 1, announced the development of nuclear magnetic resonance (NMR) imaging system, the strength of the magnetic field reached the highest level of global 24 tesla. According to the small make up the magnet industry experience, the magnet is strong magnetic ndfeb basic judgment. A thumb size only neodymium iron, use comparative performance almost brand ( Material) , about 5000 gs, adsorption on the metal surface, is almost break down. And mri magnet size slightly bigger, and equipment within not more than one magnet. ( When two magnets together, magnetic would stack) 。 Below for the small circular wafer magnet ndfeb strong magnet magnetic powerful magnets big suction. Because the magnets are very strong, so if not strictly observe precautions, metal objects if was taken into scan room may become dangerous projectiles, flies out. For example, paper clips, pens, keys, scissors, hemostatic forceps, stethoscope, and any other small items could suddenly pulled out from his pocket, hands can you imagine if the nail plate, and because of magnetic force is too strong, and from pulling away out? Then after the metals from the body of high acceleration, instantaneous flew to the opening of the magnetic field ( Where the patient) , it would pose a threat to indoor everyone's safety. Role in magnetic objects will exponentially increase with similar objects to the magnet. Suppose you holding a pipe wrench standing behind the magnet 4. 6 meters away. Then you may feel a slight pull ( Specific to see the magnet specification size and material) 。 Approached a few steps, tension will increase many. When go to within one meter from the magnet, is likely to break away from your wrench. In addition, the bigger metal quality could be more dangerous - — Because it is the attraction of the magnet will be much larger. Mop bucket, vacuum cleaners, intravenous drip, oxygen tanks, lifted the patient's a stretcher, the heart monitor, and countless other things have been drawn into magnetic resonance imaging. Small items can usually hand down from the magnet. Big objects you might want to use hoist towed, even need to be closed magnetic field, can say, if take metal into nuclear magnetic resonance (NMR), interior is likely to be the battlefield! How powerful, can consult 10/3 occurred in zhongshan news the suction powerful magnets have how old? Man down by strong magnet clip more than four hours the comparable to deliver '. Magnet if you want to know more information, or want to know more magnets professional knowledge. Article introduced constructed by nuclear magnetic resonance (NMR) medical magnetic ndfeb magnet magnetic card Ricky magnet XiaoCao share, with magnet needs can contact. Now leave a telephone: 15907695562, look forward to your call!
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