LINAC2026 - 33rd Linear Accelerator Conference

Accelerating structure development and prototyping for the SYLA injector linac

Not scheduled

2h

Daejeon Convention Center

Poster Presentation MC2.A02: Electron linac projects Poster Session

Speaker

Mikhail Vladimirov (National Research Nuclear University MEPhI)

Description

The fourth generation synchrotron radiation facility SYLA (Synchrotron&Linac) is now under development at the NRC “Kurchatov Institute”. SYLA will be driven by a 6 GeV electron linear accelerator that will operate both as the injector for the synchrotron and as the driver for free electron lasers. The prototyping of the accelerating structure for the linac has been completed now. The geometry for an accelerating cell operating on 2800 MHz has been optimized, the thermal load has been calculated, and the risk of multipactor discharge has been evaluated. Optimization of the structure yielded a coupling coefficient of 11 %, together with an effective shunt impedance of 80 MΩ/m and an overvoltage factor of 2.57. The axial field asymmetry was reduced by a factor of two. The final structure geometry was obtained, four cell prototypes were fabricated, and their principal electrodynamic parameters were measured. The measured characteristics are in agreement with the simulations.