Author: Thangaraj, J.C.T.
Paper Title Page
TUPA39
 Bunch Length Measurements of High Brightness Electron Beams in the Single-shot Mode  
 
  • G. Andonian
    UCLA, Los Angeles, California, USA
  • A.Y. Murokh, M. Ruelas
    RadiaBeam, Santa Monica, USA
  • J.C.T. Thangaraj
    Fermilab, Batavia, USA
  
  The determination of bunch length in the single-shot mode is critical for many advanced accelerator and light source facilities as ultra-short beams become more ubiquitous. These short beams (sub-ps) typically emit coherent radiation via transition radiation (or synchrotron or edge radiation) in the terahertz (THz) frequency range. The Real-Time interferometer (RTI) is a solid-state, spatial interferometer that incorporates terahertz optics and a novel linear, pyroelectric detector array that generates single-shot interferograms that are directly correlated to the beam bunch length. The device has been tested for coherent sources in the IR, and recently demonstrated at the Fermilab A0 test facility [1]. In this paper, we review the physical concepts, recent results, and potential future applications at both the Brookhaven National Laboratory Accelerator Test Facility and the SLAC National Laboratory FACET facility.
[1] J. Thangaraj, G. Andonian, R. Thurman-Keup, et al., Rev. Sci. Instrum. 83, 043302 (2012).