David Harding

David Harding David Harding, interim head of the Technical Division, wrote this column. How good is good enough? Suppose you are baking a cake from a prize-winning recipe that calls for a cup of sugar. Will the cake still be superb if you put in an extra teaspoon of sugar or leave out a teaspoon? What if you are off in your measuring by a tablespoon? How about a quarter cup? Perhaps the recipe calls for two large eggs. Surely…

David Harding David Harding, acting head of the Technical Division, wrote this column. Back in 1983, when I first really became aware of Technical Division, then named Technical Support Section, it was generally referred to as The Magnet Factory. That was indeed an apt description, though not fully reflecting the R&D and design aspects that had led to the construction of well over 1,000 superconducting magnets for the Tevatron. At the time, I was focused on the conventional magnets being…

David Harding David Harding, acting head of the Technical Division, wrote this column. This month the Technical Division celebrated the successful conclusion of a critical, multiyear upgrade to its helium liquefaction system in Industrial Building 1. Liquid helium is essential to the testing and operation of all our superconducting devices, including both magnets and RF cavities. For decades, our liquefaction system was limited to providing about 225 liters of liquid helium per hour. Thanks to our successful upgrades, the system’s…