Available Technology

APPARATUS FOR GHz RATE HIGH DUTY CYCLE PULSING AND MANIPULATION OF LOW AND MEDIUM ENERGY DC ELECTRON BEAMS

An ElectroMagnetic-Mechanical Pulser can generate electron pulses at rates up to 50 GHz, energies up to 1 MeV, duty cycles up to 10%, and pulse widths between 100 fs and 10 ps. A modulating Transverse Deflecting Cavity (“TDC”) imposes a transverse modulation on a continuous electron beam, which is then chopped into pulses by an adjustable Chopping Collimating Aperture. Pulse dispersion due to the modulating TDC is minimized by a suppressing section comprising a plurality of additional TDC's and/or magnetic quadrupoles. In embodiments the suppression section includes a magnetic quadrupole and a TDC followed by four additional magnetic quadrupoles. The TDC's can be single-cell or triple-cell. A fundamental frequency of at least one TDC can be tuned by literally or virtually adjusting its volume. TDC's can be filled with vacuum, air, or a dielectric or ferroelectric material. Embodiments are easily switchable between passive, continuous mode and active pulsed mode.
Inventors: 

Jing, Chunguang

Zhu, Yimei

Baryshev, Sergey

Qiu, Jiaqi

Lau, June W.

Patent Number: 
9,697,982
Internal Laboratory Ref #: 
17-018
Lab Representatives
Share to Facebook Share to Twitter Share to Google Plus Share to Linkedin