SRF

From Northwestern University, Nov. 8, 2019: Northwestern and Fermilab researchers, including Fermilab scientists Anna Grassellino and Alexander Romanenko, show how impurities can increase the maximum accelerating field of superconducting radio-frequency cavities, a finding with huge potential cost advantages.

Giaccone’s research focuses on particle accelerator cavities — the structures that transfer energy to particle beams as the beams race through them. She and her team use plasma to process the inner surface of the cavities in order to remove contaminations. This new technique results in a better-performing accelerator. Her work was recently recognized at the International Conference on RF Superconductivity.

From WDCB’s First Light, March 24, 2019: Brian O’Keefe interviews Fermilab PIP-II Project Director Lia Merminga about PIP-II, an accelerator project critical to the lab’s future. Fermilab broke ground on PIP-II on March 15. Learn about how PIP-II will power the international Deep Underground Neutrino Experiment, hosted by Fermilab, and the lab’s experimental program in this 15-minute piece.

A superconducting radio-frequency accelerator cavity is mounted and connected to a cryocooler, cooling the cavity without the use of liquid helium. This new device could make it easier to produce high-average-power electron beams for industrial applications. Photo: Marty Murphy

Researchers demonstrate the cryogen-free operation of a superconducting radio-frequency cavity that might ease barriers to its use in societal applications.