Author: Matsuba, S.
Paper Title Page
MOPPP035 Initial Emittance and Temporal Response Measurement for GaAs Based Photocathodes 640
  • S. Matsuba
    Hiroshima University, Graduate School of Science, Higashi-Hiroshima, Japan
  • Y. Honda, T. Miyajima, T. Uchiyama, M. Yamamoto
    KEK, Ibaraki, Japan
  • X.G. Jin
    Institute for Advanced Research, Nagoya, Japan
  • Y. Takeda
    Nagoya University, Nagoya, Japan
  For future light source based on Energy Recovery Linac (ERL) is planned in KEK. For the ERL, an ultra low emittance and fast temporal response and high current electron source is needed. To achieve these requirements, a high voltage DC gun with a Negative Electron Affinity photo-cathode is under development. In this development, it is important to investigate the performance of photo-cathodes. We have constructed an ERL gun test stand to measure emittance and temporal profile. We use a solenoid scan technique for emittance measurements and a deflecting cavity technique for temporal profile measurements. In this presentation, we introduce KEK ERL gun test stand and beam test results.