Experimental Results with Superinsulated Cryogenic Transfer Line Test Modules in THISTA

Publisher Summary The FZK THISTA Facility is dedicated to tests with regard to thermal insulation in cryogenic apparatuses. It can be used in the temperature range of 4 K < T < 300 K and has a maximum space for test objects of approx. 1,3 m dia and 2 m in height. The experience with superinsulated cryogenic apparatuses and transferlines so far resulted in a strong degradation of the MLI quality with decreasing diameters. Good experience with blanket type MLI for larger sized cryostats encourages testing this MLI blanket technique also for transferline applications. It is reported about design and equipment of THISTA and first results with transferline test modules concerning MLI blanket quality between ambient temperature and LN2- and LHe-temperature respectively.