91 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 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.

A system for generating a tunable X-ray pulse comprises a first electron beam source configured to direct a first electron pulse of predetermined energy and pulse length towards a first interaction zone, a laser beam source configured to direct a first photon pulse of predetermined energy and pulse length towards the first interaction zone to interact with the first electron pulse. The first interaction produces a substantially monochromatic second photon pulse of higher photon energy directed towards a second interaction zone, and a second electron beam source configured to direct a second electron pulse of predetermined energy and pulse length towards the second interaction zone so that the second interaction produces an X-ray pulse of predetermined energy and pulse length in a cascaded inverse Compton scattering (ICS) configuration.

A system for generating a tunable X-ray pulse comprises a first electron beam source configured to direct a first electron pulse of predetermined energy and pulse length towards a first interaction zone, a laser beam source configured to direct a first photon pulse of predetermined energy and pulse length towards the first interaction zone to interact with the first electron pulse. The first interaction produces a substantially monochromatic second photon pulse of higher photon energy directed towards a second interaction zone, and a second electron beam source configured to direct a second electron pulse of predetermined energy and pulse length towards the second interaction zone so that the second interaction produces an X-ray pulse of predetermined energy and pulse length in a cascaded inverse Compton scattering (ICS) configuration.

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.

A time-of-flight mass spectrometer includes a sample plate that supports a sample for analysis. A pulsed ion source generates a pulse of ions from the sample positioned on the sample plate. An ion accelerator receives the pulse of ions generated by the pulsed ion source and accelerates the ions. An ion detector includes an input in a flight path of the accelerated ions emerging from the field-free drift space and an output that is electrically connected to the sample plate. The ion detector converts the detected ions into a pulse of electrons.

The invention provides a device of acquiring annihilation event occurrence time and a detector. The device comprises a trigger, a time measuring circuit, a summator and a first comparator used for high threshold comparison. The summator is used for performing summation of multipath photoelectron pulse signals generated by photons and inputting the summation result to the first input end of the first comparator. The second input end of the first comparator is connected with the high threshold. The output result of the first comparator acts for identifying an annihilation event. The device also comprises a time identifying path which is used for identifying annihilation time corresponding to each path of electron pulse signals. The identifying signals first identifying the annihilation time and the output signals of the first comparator are combined to activate the trigger. The trigger is used for triggering the time measuring circuit to output time information. The annihilation event occurrence time can be more accurately acquired and the time resolution is higher.

The invention belongs to the field of measurement of optical parameters, and particularly relates to a time-resolved measurement system and a method for reconstructing the optical parameters of turbid media. In order to realize fast, real-time, non-invasive in-vivo measurement of the optical parameters of an organizer under different wavelengths, the invention utilizes the technical scheme as follows: laser emerging from a variable attenuator enters into turbid media through incident optical fiber to be scattered or absorbed, and then reflected or transmitted laser from the surface of the medium is received by detection fiber; the laser detected by detection fiber is sent to a PMT detector with refrigeration function, electronic pulse output by the PMT detector is input to a time-correlated single photon counting (TCSPC) module, and the TCSPC module obtains a time extension curve emerging from an organization and inputs the curve into a computer for processing. The invention is mainly used for measuring the optical parameters of the organizer under different wavelengths.

A method of time-resolved pump-probe electron microscopy, comprises the steps of irradiating a sample (1) with a photonic pump pulse (2) being directed on a pump pulse path (3) from a photonic source to the sample (1), irradiating the sample (1) with an electron probe pulse (4) being directed on an electron pulse path (5) from an electron pulse source (10) to the sample (1), wherein the photonic pump pulse (2) and the electron probe pulse (4) arrive at the sample (1) with a predetermined temporal relationship relative to each other, and detecting a sample response to the electron probe pulse (4) irradiation with a detector device (20), wherein the photonic source comprises a photonic lattice structure (30) being arranged adjacent to the electron pulse path (5), and the photonic pump pulse (2) is created by an interaction of the electron probe pulse (4) with the photonic lattice structure (30). Furthermore, an electron microscopy apparatus, configured for time-resolved pump-probe electron microscopy, and a sample supply device (200) for an electron microscopy apparatus (100) are described.

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

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 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.

A chiropractic adjusting instrument comprising a housing; thrust nose piece an impact head to contact a body, a preload switch plunger; a dampening spring; a solenoid having a core; a preload spring; a recoil spring; an electronic pulse system operatively connected to a power source to provide alternating current for energizing the solenoid to impart impulse energy from the core to the thrust nose piece which is reproducible and independent of the power source; and a trigger system for triggering the electronic pulse system comprising a switch activated by the preload switch plunger. Preferably, the chiropractic adjusting instrument includes one or more of the following: an intelligent universal AC power converter; optimized force-time waveform; pulse mode operation; a sensing device having a sense output and a suite of electromechanical components designed to promote reproducible dynamic force impulses and safe operation.

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.

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.

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.

A gas detector (25) has an electron source (1), which emits electron pulses into a reaction chamber (26) through a membrane (10). The ions formed in the reaction chamber (26) by the electron beam can be detected by means of a current detector (30) by a transfer field pulse being generated in the reaction chamber. The gas sensor (25) may have especially a miniaturized design.

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.