Author: Oreshonok, V.V.
Paper Title Page
MOPD77 Broadband Digital Feedback System for the VEPP-4M Electron-Positron Collider 224
 
  • V.V. Oreshonok, V.V. Smaluk
    BINP SB RAS, Novosibirsk, Russia
  • V.P. Cherepanov, V.V. Oreshonok, D.P. Sukhanov
    NSU, Novosibirsk, Russia
 
  To suppress the transverse instability, which is the main reason of beam current limitation at the VEPP-4M electron-positron collider, a digital bunch-by-bunch feedback system has been developed, installed and commissioned. The real-time data processing is performed by a special code running in an FPGA module. This provides high efficiency and flexibility of the system. During the system commissioning, a 3-times increase of the beam current injected into VEPP-4M was reached. The system design and data processing algorithms are described, the commissioning results are presented.