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公开(公告)号：US10270145B1
公开(公告)日：2019-04-23
申请号：US15413443
申请日：2017-01-24
Applicant: Euclid Techlabs LLC
Inventor： Sergey Antipov , Chunuang Jing , Roman Kostin , Jiaqu Qiu , Dan Wang , Alexei Kanareykin , Stanislauv Baturin , Sergey Baryshev
Abstract: A technique is presented to extract electromagnetic radiation from a dielectric loaded waveguide consisting of a layer or layers of dielectric material enclosed in a metallic conducting jacket. The electromagnetic radiation generated in the dielectric waveguide by a charged particle beam or otherwise generated as input to the waveguide. Dielectric loaded waveguides used for generation (or transport) of electromagnetic radiation at frequencies above 100 GHz have dimensions in the sub-mm range. Due to difficulty in the fabrication of a conventional broadband horn-like antenna to extract electromagnetic radiation from the structure because of the large impedance mismatch between the dielectric loaded waveguide and free space, the designing and fabricating aperture of antennas are formed as part of the dielectric waveguide and utilizes an angle cut or a set of apertures machined into the dielectric loaded waveguide to ensure broadband power extraction with minimal return loss and high directivity.
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公开(公告)号：US09590383B1
公开(公告)日：2017-03-07
申请号：US14176070
申请日：2014-02-08
Applicant: Euclid TechLabs, LLC
Inventor： Alexei Kanareykin , Chunguang Jing , Alexander Zholents
IPC: H01S3/00 , H01S3/09 , H01S3/0955 , H01S3/0957
CPC classification number: H01S3/0903 , H01S3/0955 , H01S3/0957 , H05H7/04 , H05H2007/046
Abstract: A technique for producing a coherent beam of hard X-rays is provided. This technique is based on a short wavelength undulator that uses the fields of an electromagnetic wave to deflect a relativistic electron beam along a sinusoidal trajectory in order to cause it to emit X-rays. The undulator consists of a slow-wave structure that is energized by a second counterpropagating electron beam. Cylindrical and planar structure configurations are provided and also a mechanism for electrical and mechanical tuning to allow control over the wavelength of the emitted X-ray beam.
Abstract translation: 提供了用于产生硬X射线的相干光束的技术。 该技术基于一种短波长波动器，其使用电磁波的场来沿着正弦轨迹偏转相对论电子束，以使其发射X射线。 波动器包括由第二反向传播电子束激励的慢波结构。 提供圆柱形和平面结构构造，并且还提供用于电和机械调谐以允许控制所发射的X射线束的波长的机构。
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公开(公告)号：US11773026B2
公开(公告)日：2023-10-03
申请号：US17019441
申请日：2020-09-14
Applicant: Euclid Techlabs, LLC
Inventor： Alexei Kanareykin , Elizaveta Arkadievna Nenasheva
CPC classification number: C04B35/46 , C04B35/64 , H01J37/32082 , H01J37/32192 , C04B2235/604 , C04B2235/6584
Abstract: A DC conductive, low RF/microwave loss titanium oxide ceramic provides, at room temperature, a bulk DC resistivity of less than 1×1011 ohm-meters and an RF loss tangent of less than 2×10−4 at 7.5 GHz and less than 2×10−5 at 650 MHz. The resistivity is reduced by oxygen vacancies and associated Ti3+ and/or Ti4+ centers created by sintering in an atmosphere containing only between 0.01% and 0.1% oxygen. The reduced resistivity prevents DC charge buildup, while the low loss tangent provides good RF/microwave transparency and low losses. The ceramic is suitable for forming RF windows, electron gun cathode insulators, dielectrics, and other components. An exemplary Mg2TiO4—MgTiO3 embodiment includes mixing, grinding, pre-sintering in air, and pressing 99.95% pure MgO and TiO2 powders, re-sintering in air at 1400° C.-1500° C. to reduce porosity, and sintering at 1350° C.-1450° C. for 4 hours in an 0.05% oxygen and 99.05% nitrogen atmosphere.
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Patent Agency Ranking
公开(公告)号：US20200343013A1
公开(公告)日：2020-10-29
申请号：US16662434
申请日：2019-10-24
Applicant: Euclid Techlabs, LLC
Inventor： Chunguang Jing , Jiaqi Qiu , Ao Liu , Eric John Montgomery , Yubin Zhao , Wade Rush , Roman Kostin , Alexei Kanareykin
Abstract: An electromagnetic mechanical pulser implements a transverse wave metallic comb stripline TWMCS kicker having inwardly opposing teeth that retards a phase velocity of an RF traveling wave to match the kinetic velocity of a continuous electron beam, causing the beam to oscillate before being chopped into pulses by an aperture. The RF phase velocity is substantially independent of RF frequency and amplitude, thereby enabling independent tuning of the electron pulse widths and repetition rate. The TWMCS further comprises an electron pulse picker (EPP) that applies a pulsed transverse electric field across the TWMCS to deflect electrons out of the beam, allowing only selected electrons and/or groups of electrons to pass through. The EPP pulses can be synchronized with the RF traveling wave and/or with a pumping trigger of a transverse electron microscope (TEM), for example to obtain dynamic TEM images in real time.
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公开(公告)号：US20220081366A1
公开(公告)日：2022-03-17
申请号：US17019441
申请日：2020-09-14
Applicant: Euclid Techlabs, LLC
Inventor： Alexei Kanareykin , Elizaveta Arkadievna Nenasheva
Abstract: A DC conductive, low RF/microwave loss titanium oxide ceramic provides, at room temperature, a bulk DC resistivity of less than 1×1011 ohm-meters and an RF loss tangent of less than 2×10−4 at 7.5 GHz and less than 2×10−5 at 650 MHz. The resistivity is reduced by oxygen vacancies and associated Ti3+ and/or Ti4+ centers created by sintering in an atmosphere containing only between 0.01% and 0.1% oxygen. The reduced resistivity prevents DC charge buildup, while the low loss tangent provides good RF/microwave transparency and low losses. The ceramic is suitable for forming RF windows, electron gun cathode insulators, dielectrics, and other components. An exemplary Mg2TiO4—MgTiO3 embodiment includes mixing, grinding, pre-sintering in air, and pressing 99.95% pure MgO and TiO2 powders, re-sintering in air at 1400° C.-1500° C. to reduce porosity, and sintering at 1350° C.-1450° C. for 4 hours in an 0.05% oxygen and 99.05% nitrogen atmosphere.
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公开(公告)号：US10804001B1
公开(公告)日：2020-10-13
申请号：US16662434
申请日：2019-10-24
Applicant: Euclid Techlabs, LLC
Inventor： Chunguang Jing , Jiaqi Qiu , Ao Liu , Eric John Montgomery , Yubin Zhao , Wade Rush , Roman Kostin , Alexei Kanareykin
Abstract: An electromagnetic mechanical pulser implements a transverse wave metallic comb stripline TWMCS kicker having inwardly opposing teeth that retards a phase velocity of an RF traveling wave to match the kinetic velocity of a continuous electron beam, causing the beam to oscillate before being chopped into pulses by an aperture. The RF phase velocity is substantially independent of RF frequency and amplitude, thereby enabling independent tuning of the electron pulse widths and repetition rate. The TWMCS further comprises an electron pulse picker (EPP) that applies a pulsed transverse electric field across the TWMCS to deflect electrons out of the beam, allowing only selected electrons and/or groups of electrons to pass through. The EPP pulses can be synchronized with the RF traveling wave and/or with a pumping trigger of a transverse electron microscope (TEM), for example to obtain dynamic TEM images in real time.
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公开(公告)号：US10515733B1
公开(公告)日：2019-12-24
申请号：US16393469
申请日：2019-04-24
Applicant: Euclid Techlabs, LLC
Inventor： Chunguang Jing , Jiaqi Qiu , Ao Liu , Eric John Montgomery , Yubin Zhao , Wade Rush , Roman Kostin , Alexei Kanareykin
IPC: G21K1/04
Abstract: An electromagnetic mechanical pulser implements a transverse wave metallic comb stripline TWMCS kicker having inwardly opposing teeth structured to retard a phase velocity of an RF traveling wave propagated therethrough to match the kinetic velocity of a continuous electron beam simultaneously propagated therethrough. The kicker imposes transverse oscillations onto the beam, which is subsequently chopped into pulses by an aperture. The RF phase velocity is substantially independent of RF frequency and amplitude, thereby enabling independent tuning of the electron pulse widths and repetition rate. The exterior surface of the kicker is conductive, thereby avoiding electron charging. In embodiments, various elements of the kicker and/or aperture can be mechanically varied to provide further tuning of the pulsed electron beam. A divergence suppression section can include a mirror TWMCS and/or magnetic quadrupoles. RF can be applied to a down-selecting TWMCS downstream of the aperture to reduce the pulse repetition rate.
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公开(公告)号：US09671520B2
公开(公告)日：2017-06-06
申请号：US14175703
申请日：2014-02-07
Applicant: Euclid Techlabs, LLC
Inventor： Tancredi Botto , Benjamin Levitt , Chunguang Jing , Sergey Antipov , Alexei Kanareykin
Abstract: A dielectric loaded accelerator for accelerating charged particles, such as electrons, ions and/or protons, is described herein. The dielectric loaded accelerator accelerates charged particles along a longitudinal axis and towards an outlet of the accelerator. The dielectric loaded accelerator accelerates the charged particles using oscillating electromagnetic fields that propagate within the accelerator according to an electromagnetic mode. The dielectric loaded accelerator described herein includes an electromagnetic mode with a phase velocity that increases towards the outlet of the accelerator and matches a velocity of the charged particles being accelerated along the longitudinal axis of the accelerator. By matching the phase velocity of the oscillating electromagnetic fields to the velocity of the charged particles, the accelerator reduces phase slippage between the fields and the charged particles and, therefore, efficiently accelerates charged particle towards the outlet.
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