Superfluid Cryogenic Plant for the SRF test facility at Fermi National Accelerator Laboratory, IL, USA

Linde Kryotechnik AG has been awarded a prestigious contract for a 1.8 K helium refrigerator system by Fermi National Accelerator Laboratory located in Batavia, IL, USA.

Fermi National Accelerator Laboratory (Fermilab), established on November 21, 1967, located just outside Batavia near Chicago, Illinois, is a US Department of Energy national laboratory specialized in high-energy particle physics. Fermilab is part of the Illinois Technology and Research Corridor.

Fermilab’s New Muon Laboratory is being converted into the new home of a 130-meter-long accelerator that will serve as a test area for Superconducting Radio Frequency (SRF) R&D. The renovated area will now be used to test cryomodules for the ILC and other future accelerators with a proton beam. A main section of the facility will be devoted to a beam line that will house six cryomodules. The facility will also contain the brand new cryogenic system supplied by Linde.

While the main purpose of this facility is to test cryomodules with beam, scientists from around the world will also be able to use the facility for a number of other SRF R&D purposes including the testing of controls, diagnostics and instrumentation.

The helium refrigeration system is designed to provide heat loads at different temperature levels when operating at 1.8 K respectively 2.0 K. The coldbox will be built as a vertical vacuum can including five gas bearing turbines arranged in three strings and three cold compressors in series.