is provided with an impure gaseous helium pressure buffer 0 from line 26 the recovered impure helium may be fed from the impure helium compressor p and the gaseous helium pressure buffer 0 to the impure cylinder filling station l for the filling of cylinders and or mcps and or tube trailers not shown with impure u201c balloon grade u201d gaseous helium alternatively the recovered impure helium may be purified by a helium purifier m and the purified helium may be fed to the pure gaseous helium pressure buffer i through lines 29 and 30 the helium from the pressure buffer i may be fed through line 32 and line 13 to the compressor j for feeding through to line 14 and to the cylinder filling station k alternatively the recovered impure helium may be fed through a helium liquefier n through line 28 and line 20 and the liquefied helium may be re used for dewar filling d and e and or for filling and re filling of superconductive magnets m 2 and m 3 through line 28 to line 15 c and through line 11 to the magnet booths v and x during pre cool of magnet booth u and magnet m 1 cool down and re fill of the superconductive magnets m 3 in magnet booth x and the energizing and testing in magnet booth v of magnet m 2 the cold outlet gas from the superconductive magnets may be directed to the quench gas recovery gas bags r s.