A microwave inverse Cerenkov accelerator ({open_quotes}MICA{close_quotes})

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Bulletin of the American Physical Society

OSTI ID:374740

Ron, A; Zhang, T B; Marshall, T C

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--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATION
CHERENKOV RADIATION
ELECTRON BEAMS
FREE ELECTRON LASERS