A direct electron beam energy spread measurement system for beam instability and FEL research


Journal Article

One of critical beam parameters for the storage ring based light sources is the energy spread of the electron beam. An accurate measurement of the energy spread remains a challenge. It is well known that the energy spread of the electron beam can degrade the spontaneous radiation spectrum of an Optical-Klystron (OK) which consists of two wigglers separated by a buncher magnet. The reduced modulation in the spectrum can be used to determine the energy spread of the beam. This paper describes our newly developed energy spread measurement system employing a compact and versatile spectrometer. This system is used in the beam instability research and Free-Electron Laser (FEL) research. In particular, by measuring the increase of electron beam energy spread we have studied the onset of microwave instability. ©2007 IEEE.

Full Text

Duke Authors

Cited Authors

  • Huang, S; Li, J; Wu, YK

Published Date

  • December 1, 2007

Published In

  • Proceedings of the Ieee Particle Accelerator Conference

Start / End Page

  • 4045 - 4047

Digital Object Identifier (DOI)

  • 10.1109/PAC.2007.4440051

Citation Source

  • Scopus