Medical and Scientific Uses
- MRI and NMR:
Liquid helium cools the superconducting magnets in MRI and NMR machines, which are vital for imaging and scientific research. - Cryogenics:
Due to its extremely low boiling point, it's used in cryogenics and for studying superconductivity. - Respiratory Therapy:
Mixed with oxygen (Heliox), it helps patients with asthma and COPD breathe more easily by improving gas penetration into the lungs.
- Semiconductors and Fiber Optics: It's used in the production of electronic components, like computer chips and fiber optics, and to grow silicon crystals.
- Welding: Helium provides a protective, non-flammable atmosphere for arc welding.
- Leak Detection: It's used to detect tiny leaks in complex systems and manufacturing equipment.
- Balloons and Airships: Helium's buoyancy makes it ideal for filling party balloons, weather balloons, and airships.
- Rocketry: It's used to clean rocket engines and pressurize fuel tanks.
- Diving: Helium is mixed with oxygen to create a breathable, nitrogen-free atmosphere for deep-sea divers.
- Lasers: Helium is used in the development of lasers.