Washington University in St. Louis – St. Louis, Missouri
This acoustical study prepared two laboratories for cryogen-free dilution refrigerators (which approach zero kelvin) and their magnets. This specialty equipment has very tight vibration and sound tolerances. The labs require acoustical isolation from their associated pumps and equipment rooms as well as from adjacent spaces. This project included a thorough study of the equipment and discussions with the end users to develop an understanding of the requirements and set the criteria. Also, measurements of the existing background noise and vibration levels and comprehensive HVAC noise calculations were completed in order to provide recommendations for space appropriate acoustics.