16–21 Aug 2026
Daejeon Convention Center
Asia/Seoul timezone

Breaking the Cryoplant Barrier: Conduction-Cooled Nb₃Sn-Coated SRF Linacs for Industrial and Environmental Applications

WE2A003
19 Aug 2026, 11:50
20m
2F Grand Ballroom (Daejeon Convention Center)

2F Grand Ballroom

Daejeon Convention Center

Invited Talk (Invitation Only) MC2.A05: Industrial and medical accelerators WE2A - Invited Talks

Speaker

Jayakar Thangaraj (Fermi National Accelerator Laboratory)

Description

Superconducting linacs have traditionally required large cryogenic infrastructures, while compact accelerators relied on normal-conducting technology. This divide is narrowing. At Fermilab’s IARC, Nb₃Sn-coated cavities operating near 4 K, combined with cryocooler-based conduction cooling and solid-state RF power, enable compact SRF linacs for high-duty-factor operation outside traditional facilities. Systems under construction target environmental remediation and medical device sterilization at approximately 10 MeV, where efficiency and life-cycle cost are critical. These machines use multi-cell elliptical cavities at 650 MHz and 1.3 GHz, operating at 7–10 MV/m under conduction cooling with industrial cryocoolers. Eliminating liquid-helium plants shifts SRF from facility-scale installations to application-oriented platforms, thereby extending superconducting technology into regimes that have not been economically viable.

Funding Agency

US Department of Energy

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Authors

Jayakar Thangaraj (Fermi National Accelerator Laboratory) Travante Thompson (Fermi National Accelerator Laboratory)

Co-authors

Alexander Sukhanov (Fermi National Accelerator Laboratory) Grigory Eremeev (Fermi National Accelerator Laboratory) Ivan Gonin (Fermi National Accelerator Laboratory) Nikki Tagdulang (Fermi National Accelerator Laboratory) Sam Posen (Fermi National Accelerator Laboratory) Sergey Kazakov (Fermi National Accelerator Laboratory) Timergali Khabiboulline (Fermi National Accelerator Laboratory) Vyacheslav Yakovlev (Fermi National Accelerator Laboratory)

Presentation materials

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