89 results about "Electron pulse" patented technology

Improvements in and relating to electronic pulse generation or oscillation circuitry based on a signal path exhibiting endless electromagnetic continuity and affording signal phase inversion in setting pulse duration or half-cycles of oscillation within time of signal traverse of said signal path, and having active switching means associated with said signal path to set rise and fall times of each said pulse or said half-cycle of oscillation, including for frequency adjustment by selective inductance and power saving without stopping pulse generation or oscillation.

An ultrafast system (and methods) for characterizing one or more samples. The system includes a stage assembly, which has a sample to be characterized. The system has a laser source that is capable of emitting an optical pulse of less than 1 ps in duration. The system has a cathode coupled to the laser source. In a specific embodiment, the cathode is capable of emitting an electron pulse less than 1 ps in duration. The system has an electron lens assembly adapted to focus the electron pulse onto the sample disposed on the stage. The system has a detector adapted to capture one or more electrons passing through the sample. The one or more electrons passing through the sample is representative of the structure of the sample. The detector provides a signal (e.g., data signal) associated with the one or more electrons passing through the sample that represents the structure of the sample. The system has a processor coupled to the detector. The processor is adapted to process the data signal associated with the one or more electrons passing through the sample to output information associated with the structure of the sample. The system has an output device coupled to the processor. The output device is adapted to output the information associated with the structure of the sample.

An electron microscopy system and an electron microscopy method for detection of time dependencies of secondary electrons generated by primary electrons is provided, in which the primary electron pulses are directed onto a sample surface and electrons emanating from the sample surface are detected, time resolved. To this end the system comprises in particular a cavity resonator. A cavity resonator can also be used to reduce aberrations of focusing lenses.

An ion detector includes collision surfaces for converting both positively and negatively charged ions into emitted secondary electrons. Secondary electrons may be detected using an electron detector, than may, for example include an electron multiplier. Conveniently, secondary electrons (or electrons emitted by the multiplier) may be detected using an electron pulse counter.

An electron microscope and a method of imaging objects. The method including the steps of: generating at least one electron pulse, each electron pulse including a plurality of electrons with the electrons having a kinetic energy spread; demagnifying each electron pulse using one or more lenses, each lens having a focal strength; dynamically varying said focal strength of at least one of said one or more lenses to compensate for said kinetic energy spread; and forming an image of said object based on interactions at said object resulting from each demagnified pulse. The electron microscope comprising: an electron source adapted to produce a plurality of electron pulses, each electron pulse including a plurality of electrons with the electrons having a kinetic energy spread; one or more lenses adapted to demagnify each of said electron pulses at said object, each lens having a focal strength; compensation means for dynamically varying said focal strength of at least one of said one or more lenses to compensate for said kinetic energy spread; and a detector for forming an image of said object based on interactions at said object resulting from each of said demagnified pulses

The invention provides a cupping device of compound energy electronic pulse drug introduction which is suitable for health care and physical therapy fitness of human body. By adopting the latest modern nanometer silver material technology, conventional natural jades, the high-tech rare earth permanent magnetic material technology, the modern low-frequency electronic pulse technology and combining the conventional Chinese physical treatment method of cupping physical treatment, the cupping device designs a compound novel cupping physical treatment device with the superposition of a plurality of energies, thus improving and extending the functions and application scales of electronic pulse instrument. The cupping device has the advantages of improving the human blood circulation, increasing the microcirculation, promoting the metabolism function, relaxing human muscles and stimulating the points to provide a novel compound energy physical treatment health care cupping electronic pulse device.

The invention relates to a position energy time testing device based on a CZT detector. The testing device at least comprises a scintillation crystal array, one or more pixel detectors, a dedicated readout ASIC. The dedicated readout ASIC is capable of determining relative time information of ray action detectors corresponding to a plurality of scintillation cases detected by each pixel detector respectively by utilizing a determined corresponding relation between electronic pulses provided by the pixel detectors and the luminous intensity of scintillation light generated by the scintillationcrystal array under the incidence of radiation particles at a multi-pixel energy spectrum detector module level, focusing the plurality of scintillation cases from a single gamma photon, performing time coincidence logic processing to discriminate effective scintillation cases from Compton scattering, and outputting scintillation case information that includes relative time information, pixel energy spectrum information, and position information of the ray action detectors and are treated by time coincidence logic processing.

A procedure and machine promotes healing by causing muscle fasciculation and contraction relaxation cycles that effectively pump blood through the microcirculation, draining the venous beds and raising the tissue oxygen levels. A high phase charged system is electronically pulsed and adjusted to induce deep-layered muscle contractions, causing greatly increased flow rates of both blood and lymphatics, patency of vessels permitting, and forcing blood into the microcirculation of the treated tissue. The machine electrical waveform stimulates angiogenesis, facilitating new tissue growth and repair in the healing process and raises the metabolic rate in the treated tissues.

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.

The laser pulse generator includes following parts and structures: laser in femtosecond; isolator setup at output end of the laser in femtosecond; holophote and beam splitter setup in sequence from the output end of the isolator; self frequency shift soliton generator composed of coupling lens, microstructure optical fiber and coupling lens is setup on one optical path from beam splitter; filter for passing 1000-1100nm pulse light is setup at output end of the said soliton generator; holophote and delay line of compensating time with accuracy are setup on the other optical path from beam splitter. In simple structure, and stable operation, the invention generates synchronous high precision laser pulse in femtosecond magnitude, which is higher more than three orders of magnitude compared with current electronic pulse synchronizer.

X-ray pulse source (100) for generating X-ray pulses (1) includes electron pulse source device (10) including photo-emitter device (11) being configured for photo-induced creation of free electron pulses (2) and driver device (12) being configured for creating electromagnetic driver pulses (3) accelerating electron pulses (2) along acceleration path (7), and electromagnetic interaction device (50) comprising electromagnetic pulse source device (51) being configured for creating electromagnetic pulses (4) in interaction section (5) of electromagnetic interaction device (50), wherein electron pulse source device (10) and electromagnetic interaction device (50) are operable for generating X-ray pulses (1) by an interaction of electron pulses (2) and electromagnetic pulses (4), and driver device (12) includes THz driver pulse source (13), which is configured for creating single cycle or multi cycle THz driver pulses (3). Furthermore, a method of creating X-ray pulses (1) is described.

The present invention provides an electronic impact ionization impulse combined energy scraping massage device, which is suitable for human health-care, physical therapy and body-building. The new type physical therapy apparatuses with multi-energy overlapping -the combined type horn thumb shape scraping bar and butterfly shape scraping board are designed by using modern updated nano silver technology and traditional natural bowlder, germanite material, high-tech rare earth permanent magnetic material technology, modern Low-IF electronic impulse technology combined with Chinese traditional physica therapy such as scraping, massage, acupuncture. So function and application range of electronic impulse are increased and enlarged. The electroinc impulse instrument can improve human blood circulation, increase microcirculation, promotes metabolism function, releases human muscle, stimulates meridian point and provides a new type combined energy physical therapy electronic impulse instrument with scraping massage acupuncture functions.

The invention discloses a sole massager, which comprises an upper cover and a lower cover, wherein the top surface of the upper cover is provided with two foot-shaped massage areas, a key area and a display area; the bottom surface of the upper cover, corresponding to the key area, is provided with a first printed circuit board (PCB); the bottom surface of the upper cover, corresponding to the display area, is provided with a second PCB; the second PCB is provided with four eight-section light emitting diode (LED) display units; the first PCB is provided with a display chip U5 and a key circuit; and a first electronic pulse device comprises a first pulse circuit. An electronic pulse patch forms waveform current and automatically changes the frequency so as to improve the functions of muscular tissues and play an obvious role in preventing osteoporosis, ageing and diseases of the nervous system.

Determining electromagnetic response of sample structure having predetermined bulk permittivity and permeability, to electron and radiation pulses, includes calculating electron pulse response of sample structure to electron pulse excitation, using finite-difference time-domain method. Electron pulse excitation is represented by non-singular current source driven by relativistic moving non-Coulombian electron charges, electron pulse response is calculated based on interaction of electron pulse excitation with electromagnetic modes of sample structure at laboratory frame, and electron pulse response depends on bulk permittivity and permeability of sample structure, calculating radiation response of sample structure to electromagnetic radiation excitation, using finite-difference time-domain method. Radiation response depends on bulk permittivity and permeability of sample structure, and providing electromagnetic response of sample structure by superimposing electron pulse response and radiation response. Electromagnetic response comprises electron-energy-loss spectra and/or experienced phase of electron wave functions after interacting with photons of electromagnetic radiation excitation. Method and measuring apparatus are also described.

An implantable medical electronic tissue stimulating device is formed of two hermetically sealed, fluid impervious housings, one containing an electronic pulse generator and the other a battery power supply. The two are adapted to be mechanically and electrically coupled together through a coupler/connector whereby current from the battery in one sealed housing is fed to the electronic pulse generator in the other sealed housing.

The invention relates to a linkage-type moxibustion treatment device which is characterized by including a crust with a nozzle, an air storing tank which is connected with the nozzle, an electronic portfire with an igniting switch, a nozzle switch which is placed between the nozzle and the electronic portfire and an electrical source device which is connected with the electronic igniting switch. The nozzle switch includes a pull rod which can slip leftwards and rightwards, and one end of the pull rod is connected with a slip block, and another end of the pull rod is wedge-shaped and is used to control opening the air storing tank. A return spring is arranged between the slip block and the igniting switch and is used for controlling the motion of the pull rod. The invention accurately and effectively controls the burning time and the surface temperature of the flame by the mutual coordination of a plurality of items of mechanical linkages and an electronic pulse lighter.

In one aspect, the present invention provides a method of generating an electron beam in a transmission electron microscopy device. The method includes: generating an electron pulse [306] by a pulsed electron source [300], accelerating the electron pulse in a first resonant microwave cavity [302], passing the accelerated electron pulse through a drift space [314], and correcting the energy spread of the accelerated electron pulse in a second resonant microwave cavity [304] by operating it out of phase by 90 degrees from the first resonant cavity [302].