Liquid helium is used to cool the superconducting electromagnets.
helium is used to cool superconducting magnets in mri scanners as helium is lighter then air airships use them as gasses
Helium and xenon have been used in medical applications such as MRI scanners and anesthesia. Radon is radioactive and poses health risks if inhaled. Neon, krypton, and argon are primarily used in lighting technology such as neon signs and fluorescent lamps.
Helium is an important natural resource, and is used in a variety of settings. One of these is its use in cooling the powerful magnets used for NMR and MRI, where liquid helium is required in order to achieve their operating temperatures. Another key use is as a carrier gas for Gas Chromatography and GC/MS in analytical and similar laboratories.
Helium is used in hospitals for various medical purposes, such as cooling magnets in MRI machines, as a carrier gas for respiratory therapies, and in mixtures for lung function testing. Its relatively low density also makes it useful for creating a positive-pressure environment during surgeries and other medical procedures.
Helium is generally used in helium balloons and blimps. Helium is lighter than air and these items will float in air
helium is used to cool superconducting magnets in mri scanners as helium is lighter then air airships use them as gasses
The "body scanners" that use it are Magnetic Resonance Imaging, or MRI, machines. (The scanners at airports are akin to radar sets, and don't use liquid helium.) MRI machines contain a very large electromagnet. To keep the thing from requiring its own power plant, an MRI magnet is wound with superconducting wire - wire with, effectively, no resistance. Superconducting wire must be kept at the temperature of liquid helium if you want it to superconduct.
mri scanners, x-rays, finger-print scanners, ect.
Most of the MRI scanners today use superconducting magnets that need liquid helium to keep them cold enough for proper function. A malfunction may, however, cause the helium to convert to gas and rapidly escape the cryogenic chamber that effectively demagnetizes the main MRI magnet. When this happens, a MRI magnet is said to have "quenched". This not only incurs expensive repairs to the equipment but the rapidly escaping helium in the close confines of a MRI suite may also cause asphyxiation injury to any person present there. Fortunately this catastrophe is extremely rare and has been virtually eliminated in the newer equipment through improved design.
Most of the MRI scanners today use superconducting magnets that need liquid helium to keep them cold enough for proper function. A malfunction may, however, cause the helium to convert to gas and rapidly escape the cryogenic chamber that effectively demagnetizes the main MRI magnet. When this happens, a MRI magnet is said to have "quenched". This not only incurs expensive repairs to the equipment but the rapidly escaping helium in the close confines of a MRI suite may also cause asphyxiation injury to any person present there. Fortunately this catastrophe is extremely rare and has been virtually eliminated in the newer equipment through improved design.
No, MRI scanners can 'see through' hair
An MRI machine typically uses about 1,700 liters of helium during its operation.
Magnetic Resonance Imaging
MRI scanners have practically no adverse effects. MRI or magnetic resonance imaging works by noting difference of various images created by varying response of different body tissues.
radiologists use x-ray equipment radiologists use x-ray equipment They use MRI scanners, CAT scanners, they do ultrasounds(I don't know name of machine), and they take x-rays!
MRI scanners are easy to operate. However if you want to go to school to learn more details about scanners you can join a vocational school that lets you know information like that.
liquid helium