A microwave inverse Cerenkov accelerator ({open_quotes}MICA{close_quotes})
The authors study the possibility of {open_quotes}inverting{close_quotes} the operation of a Cerenkov FEL into an electron accelerator device driven by X-band microwaves that propagate in a slow-wave TM mode (axial E-field). The waveguide may be rectangular, with slabs of dielectric material located parallel to and along the walls, well separated from the electron beam; or possibly cylindrical. Tapering of the axial wavenumber of the mode, using the guide width and or dielectric filling factor, will maintain an accelerating electron in Cerenkov resonance. By using a few psec pulse of electrons from an rf gun ({gamma} = 9), the electrons are injected into a narrow window of accelerating phases. Because of the smooth bore structure, absence of a guiding magnetic field, and its one-dimensionality, the MICA is likely to have good transverse emittance. A set of first order accelerator equations with self-consistent radiation fields has been derived; numerical examples appropriate for a laboratory accelerator having an output beam energy of several MeV will be presented.
- OSTI ID:
- 374740
- Report Number(s):
- CONF-9304297-; ISSN 0003-0503; TRN: 96:004080-0103
- Journal Information:
- Bulletin of the American Physical Society, Vol. 40, Issue 2; Conference: 1993 joint meeting of the American Physical Society and the American Association of Physics Teachers, Washington, DC (United States), 12-15 Apr 1993; Other Information: PBD: Apr 1995
- Country of Publication:
- United States
- Language:
- English
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