Ultra-high vacuum
= Ultra-high vacuum
{wiki=Ultra-high_vacuum}
Ultra-high vacuum (UHV) refers to a type of vacuum that has an extremely low pressure, typically in the range of \\(10^\{-9\}\\) to \\(10^\{-12\}\\) torr (or equivalent pressures in pascals, around \\(10^\{-7\}\\) to \\(10^\{-10\}\\) pascals). This level of vacuum is significantly lower than high vacuum, which generally ranges from \\(10^\{-7\}\\) to \\(10^\{-3\}\\) torr.