Author: Tecker, F.
Paper Title Page
MOPB032 Stabilization of the Beam Intensity in the Linac at the CTF3 CLIC Test Facility 243
  • A. Dubrovskiy
    JINR, Dubna, Moscow Region, Russia
  • B.N. Bathe, S. Srivastava
    BARC, Mumbai, India
  • F. Tecker
    CERN, Geneva, Switzerland
  A new electron beam stabilization system has been introduced in CTF3 in order to open new possibilities for CLIC beam studies in ultra-stable conditions and to provide a sustainable tool to keep the beam intensity and energy at its reference values for long term operations. The stabilization system is based on a pulse-to-pulse feedback control of the electron gun to compensate intensity deviations measured at the end of the injector and at the beginning of the linac. Thereby it introduces negligible beam distortions at the end of the linac and it significantly reduces energy deviations. A self-calibration mechanism has been developed to automatically configure the feedback controller for the optimum performance. The residual intensity jitter of 0.045% of the stabilized beam was measured whereas the CLIC requirement is 0.075%.