 In a series of sweeping budget cuts across the entire energy research field, MFTF had its operational budget cancelled, although its construction budget survived.Construction completed in 1986, and the facility sat unused for a year being scavenged for parts by other researchers until it was formally cancelled in 1987 and disassembled.It was designed and built at Lawrence Livermore National Laboratory (LLNL), one of the primary research centers for mirror fusion devices.