LINAC2026 - 33rd Linear Accelerator Conference

High overcoupled RF couplers for a standing wave normal conducting linacs: development and operational experience

Not scheduled

2h

Daejeon Convention Center

Poster Presentation MC2.A05: Industrial and medical accelerators Poster Session

Speaker

Mikhail Vladimirov (National Research Nuclear University MEPhI)

Description

The NRNU MEPhI and the CORAD has been developing and commissioning linear accelerators for industrial and scientific applications. The designed linacs are operate on a standing wave and S-band. Linacs are based on a biperiodic accelerating structures. Due to the sufficiently high values of the received beam currents (from several hundred mA and above) and, consequently, a significant beam loading, an overcoupled RF-power couplers (coupling coefficient more than 4) were developed and constructed for these accelerators. For the projects the conventional geometry with a below cutoff waveguide of the symmetrical type were used. Symmetrical couplers allowed obtaining a coupling coefficient above 10. The work summarizes the experience gained over more than a decade of work and linacs commissioning and operation.