Far-IR/THz Radiation from the Jefferson Lab FEL Energy Recovered Linac

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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 ... continued below

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319 Kilobytes pages

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Williams, G.P. September 1, 2001.

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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.

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319 Kilobytes pages

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  • Synchrotron Radiation Instrumentation Conference, Madison, WI (US), 08/21/2001--08/24/2001

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  • Report No.: JLAB-ACC-01-15
  • Report No.: DOE/ER/40150-1902
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 786148
  • Archival Resource Key: ark:/67531/metadc721444

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  • September 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 9:32 p.m.

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Williams, G.P. Far-IR/THz Radiation from the Jefferson Lab FEL Energy Recovered Linac, article, September 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc721444/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.