公开(公告)号：US09697982B2

公开(公告)日：2017-07-04

申请号：US15091639

申请日：2016-04-06

Applicant: Euclid TechLabs, LLC

Inventor： Sergey V Baryshev ,  Chunguang Jing ,  Jiaqi Qiu ,  Sergey Antipov ,  Gwanghui Ha ,  June W Lau ,  Yimei Zhu

IPC: H01J37/04 ,  H01J37/147 ,  H01J37/06

CPC classification number: H01J37/06 ,  H01J37/045 ,  H01J37/1472 ,  H01J2237/04 ,  H01J2237/0432 ,  H01J2237/061 ,  H01J2237/1508

Abstract: 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.

公开(公告)号：US10319556B2

公开(公告)日：2019-06-11

申请号：US15368051

申请日：2016-12-02

Applicant: Euclid TechLabs, LLC

Inventor： Chunguang Jing ,  Jiaqi Qiu ,  Sergey V Baryshev ,  June W Lau ,  Yimei Zhu

IPC: H01J37/04 ,  H01J37/317

Abstract: An ElectroMagnetic-Mechanical Pulser (“EMMP”) generates electron pulses at a continuously tunable rate between 100 MHz and 20-50 GHz, with energies up to 0.5 MeV, duty cycles up to 20%, and pulse widths between 100 fs and 10 ps. A dielectric-filled Traveling Wave Transmission Stripline (“TWTS”) that is terminated by an impedance-matching load such as a 50 ohm load imposes a transverse modulation on a continuous electron beam. The dielectric is configured such that the phase velocity of RF propagated through the TWTS matches a desired electron energy, which can be between 100 and 500 keV, thereby transferring electromagnetic energy to the electrons. The beam is then chopped into pulses by an adjustable aperture. Pulse dispersion arising from the modulation is minimized by a suppressing section that includes a mirror demodulating TWTS, so that the spatial and temporal coherence of the pulses is substantially identical to the input beam.