This research aims to improve the existing capabilities of Scanning Tunneling Microscopy (STM) in a dry-dilution refrigerator, at the Oosterkamp group. The group currently has an STM setup that can...Show moreThis research aims to improve the existing capabilities of Scanning Tunneling Microscopy (STM) in a dry-dilution refrigerator, at the Oosterkamp group. The group currently has an STM setup that can resolve step edges in highly oriented pyrolytic graphite (HOPG) and is poised to achieve atomic resolution [1]. Currently the STM is mounted in the dry-dilution refrigerator, which allows for the study of samples at milli-Kelvin temperatures. The use of a dry-dilution refrigerator gives rise to some complications. Specifically we analyse the contributions of the compressor from the pulse tube cooling system. It was found that this compressor is the dominant source of mechanical noise in setup. We determined that the vibrations enter through both the compressor lines and via the ground through the outer frame. The compressors vibrations gave rise to 0.88 ̊ARMS noise. By placing the compressor on compressed gas springs and running the compressor lines through a trough filled with sandbags, we were able to reduce this noise to 0.13 ̊ARMS. This should no longer stand in the way of reaching atomic resolution STM.Show less