heliumvarat
Heliumvarat, or helium resources, refers to the known and potential supplies of helium accessible for human use. Helium is a noble gas, the second-lightest element, with a very low boiling point and high chemical inertness. It is produced on geological timescales and, once released into the atmosphere, escapes; as a result, helium is treated as non-renewable on human timescales.
Most commercial helium is recovered from natural gas reserves where helium is dissolved in the gas. After
Uses include cryogenics for superconducting magnets (notably MRI scanners), semiconductor manufacturing, fiber optics, leak detection, and
Economics and policy: Helium supply has been concentrated in a small number of regions, leading to price
Outlook: Advances in exploration, processing, and reuse, together with continued attention to conservation and substitutes, will