Far-IR/THz Radiation from the Jefferson Lab FEL Energy Recovered Linac
The Free Electron Laser at Jefferson Lab is based on a photo-injected energy recovered linac, and currently uses a 40 MeV electron beam with an average current of 5 mA. The electron bunches are extremely short with FWHM values that are in the few hundred femtosecond regime. These electron bunches pass a chicane around the optical cavity, and therefore emit synchrotron radiation. In the far-IR region, the wavelength of light being emitted quickly approaches that of the electron bunch length, giving rise to multiparticle coherent enhancement. The result is a broadband spectrum more than 5 orders of magnitude brighter than can be obtained from incoherent synchrotron IR sources. We will discuss preliminary measurements of this radiation, and applications to spectroscopy and imaging.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 786148
- Report Number(s):
- JLAB-ACC-01-15; DOE/ER/40150-1902; TRN: US0108821
- Resource Relation:
- Conference: Synchrotron Radiation Instrumentation Conference, Madison, WI (US), 08/21/2001--08/24/2001; Other Information: PBD: 1 Sep 2001
- Country of Publication:
- United States
- Language:
- English
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