Dr. Moler's laboratory builds and operates tools for measuring magnetic fields on small length scales. They use these tools to study superconductivity and mesoscopic quantum mechanical effects at low temperatures. The lab currently operates and improves on several home-built scanning apparatuses. These systems include a 4 Kelvin (K) magnetic force microscope, and a 4 K, 300 mK He3, and 12 mK dilution refrigerator that are used for scanning SQUID and Hall probe studies. These setups have mechanical and acoustic vibration isolation measures and use piezo positioners for precise sensor control.