||The ULTSPM lab rests on a separate 110-ton concrete slab (1), supported by pneumatic isolators. Inner (2) and an outer (3) enclosures shield from acoustic noise, with the inner enclosure also acting as a radio-frequency shield. The microscope is mounted on a 6-ton granite table (4), also supported by pneumatic isolators. The cryostat (5) is mounted in a hole in the granite table and in the concrete slab on a third set of pneumatic isolators. Inside the cryostat, the dilution refrigerator insert (6) hangs immersed in the liquid helium bath. Samples from the processing lab enter the enclosed room through two hatches on the right via a central vacuum line (7).