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Li, YL.

Paper Title Page
FRPMS011 Design of an Electro-Optical Sampling Experiment at the AWA Facility 3901
  • J. Ruan, H. Edwards, V. E. Scarpine, C.-Y. Tan, R. Thurman-Keup
    Fermilab, Batavia, Illinois
  • YL. Li, J. G. Power
    ANL, Argonne, Illinois
  • T. J. Maxwell
    Northern Illinois University, DeKalb, Illinois
  Funding: Supported by US DOE

The free space electro-optical (EO) sampling technique is a powerful tool for analyzing the longitudinal charge density of an ultrashort e-beam. In this paper, we present

  1. experimental results for a laser-based mock-up of the EO experiment* and
  2. a design for a beam-based, single-shot, EO sampling experiment using the e-beam from the Argonne Wakefield Accelerator (AWA) RF photoinjector.
For the mock-up, a tabletop terahertz experiment is conducted in the AWA laser room. The mock-up uses an IR beam incident on <110> ZnTe crystal to produce a THz pulse via optical rectification. Detection is based on the cross correlation between the THz field and the probe IR laser field in a second <110> ZnTe crystal. Potential application of this technique to the ILC accelerator test facility at Fermilab is also presented.

* Yuelin Li, Appl. Phys. Lett. 88, 251108, 2006