A schematic of the vacuum chamber and equipment is shown
in Fig. 3.
The test chamber could be baked with heating bands which were
placed on the outside of the vacuum chamber. The temperature of
150 ◦ C is the standard bake-out temperature to be applied for the
UHV components at W7-X. The heat was mostly transferred to the
sample by thermal radiation. So the samples were not as hot as the
chamber wall set to 150 ◦ C.