Jay Theilacker

Jay Theilacker, the head of the Accelerator Division’s Cryogenics Department, wrote this week’s column. Jay Theilacker For more than 28 years, the Central Helium Liquefier, located in the building across the street from the Feynman Computing Center, has played an essential role in making the Tevatron work. It provides the liquid helium that flows through the veins of the Tevatron to cool more than 1,000 superconducting magnets. In the 1980s, Fermilab management deemed the around-the-clock operation of the CHL so…