152 results about "Ion accelerators" patented technology

A method and apparatus that may comprise an EUV light producing mechanism utilizing an EUV plasma source material comprising a material that will form an etching compound, which plasma source material produces EUV light in a band around a selected center wavelength comprising: an EUV plasma generation chamber; an EUV light collector contained within the chamber having a reflective surface containing at least one layer comprising a material that does not form an etching compound and/or forms a compound layer that does not significantly reduce the reflectivity of the reflective surface in the band; an etchant source gas contained within the chamber comprising an etchant source material with which the plasma source material forms an etching compound, which etching compound has a vapor pressure that will allow etching of the etching compound from the reflective surface. The etchant source material may comprises a halogen or halogen compound. The etchant source material may be selected based upon the etching being stimulated in the presence of photons of EUV light and/or DUV light and/or any excited energetic photons with sufficient energy to stimulate the etching of the plasma source material. The apparatus may further comprise an etching stimulation plasma generator providing an etching stimulation plasma in the working vicinity of the reflective surface; and the etchant source material may be selected based upon the etching being stimulated by an etching stimulation plasma. There may also be an ion accelerator accelerating ions toward the reflective surface. The ions may comprise etchant source material. The apparatus and method may comprise a part of an EUV production subsystem with an optical element to be etched of plasma source material.

A neutron generator includes an ion source disposed in a pressurized environment containing an ionizable gas. The ion source includes a substrate with a bundle of carbon nanotubes extending therefrom. The ends of the nanotubes are spaced from a grid. Ion source voltage supply circuitry supplies a positive voltage potential between the substrate and the grid of the ion source to cause ionization of the ionizable gas and emission of ions through the grid. An ion accelerator section is disposed between the ion source and a target. The ion accelerator section accelerates ions that pass through the grid towards the target such that collisions of the ions with the target cause the target to generate and emit neutrons therefrom. The ion source, accelerator section and target are housed in a sealed tube and preferably the carbon nanotubes of the bundle are highly ordered with at least 10⁶ carbon nanotubes per cm² that extend in a direction substantially parallel to the central axis of the tube. The neutron generator provides gas ionization at much higher atomic to molecular ratio that the prior art, which allows for small compact size designs suitable for logging tools that are used in space-constrained downhole environments.

An ion accelerator for a time-of-flight mass spectrometer includes a pulsed ion accelerator positioned proximate to a sample plate and having an electrode that is electrically connected to the sample plate. An accelerator power supply generates an accelerating potential on the ion accelerator electrode that accelerates a pulse of ions generated from the sample positioned on the sample plate. An ion focusing electrode is positioned after the pulsed ion accelerator. A potential applied to the ion focusing electrode focuses the pulse of ions into a substantially parallel beam propagating in an ion flight path. A static ion accelerator is positioned proximate to the ion focusing electrode with an input that receives the pulse of ions focused by the ion focusing electrode. The static ion accelerator accelerating the focused pulse of ions.

An activated catalyst for the rapid decomposition of H₂O₂ is provided wherein a porous high surface area catalyst base, e.g. a zeolite molecular sieve (ZMS) is impregnated or doped with a solution of metal cation salts and an ionic promoter, dried and calcined to form an activated catalyst. Such activated catalyst, in the form of a porous monolith or chunks, extrudate, pieces, pellets, or spheres, can be poured into and confined, in a tight pack, in a cavity of a rocket housing, downstream of a pressurized H₂O₂ tank. The H₂O₂ is flowed through the catalyst and undergoes rapid decomposition into steam and O₂ and flows out the propellant nozzle of such rocket. Advantages of such activated catalyst are that it can be employed to rapidly decompose H₂O₂ to propel a) a mono-propellant rocket, b) a bipropellant rocket (having fuel and a combustion chamber) and c) a hybrid rocket (powered by H₂O₂ and fuel grain) and can also be used for a starter cartridge decomposition catalyst, a gas generator decomposition catalyst and the like. Another benefit of the activated catalyst of the invention is its low weight which is highly suitable in small flightweight rocket systems.

A reactor system produces plasma rocket thrust using alpha-initiated atomic fuel pellets without the need for a critical mass of fissionable material. The fuel pellets include an outer layer reactive material to alpha particles to generate neutrons (e.g., porous lead or beryllium), an under-layer of fissionable material (e.g., thorium or enriched uranium), and an optional inner core of fusion material (e.g., heavy water ice, boron hydride). The pellets are injected one at a time into a charged reaction chamber containing a set of alpha beam channels, possibly doubling as ion accelerators, all directed toward a common point. Alpha particles converging on each successive pellet initiate an atomic reaction in the fissionable under-layer, via a neutron cascade from the pellet outer layer, producing plasma that is confined within the chamber. This may be enhanced by atomic fusion of the optional inner core. The resulting high-energy plasma creates electrostatic pressure on the chamber and is allowed to exit the chamber through a port. An ion accelerator at the exhaust port of the chamber accelerates outgoing plasma ions, possibly with added reaction mass, to generate the rocket thrust. An electric circuit that includes the charged chamber may collect the electrons in the plasma to help power the ion accelerator(s).

The present invention relates to an apparatus and method for the analysis of ions in a mass spectrometer comprising; a means to remove material from the sample at a defined specific point, a means to change either discretely or continuously the said defined point of material removal, at least one ionisation means, at least one ion accelerator, at least one energy selective means, a time focus means, a pulse bunching means and a detection means. Said invention allows the mass of an to be analysed with respect to multiple positions on a sample of a material providing a method and apparatus that allows the effective three dimensional mapping of the sample in terms of its constituent parts, their corresponding distribution in those three dimensions in relation to each other and other points of interest on the said sample and also to retain important chemical information by permitting the analysis of whole and intact molecules present on the surface of or within the material sample.

The flocking method of the automobile inner ornament is as follows: process the surface, gelatinize, flock, put the pieces to be flocked on the turntable platform of the flocking maneuvering box, add fluff into the hopper of the flocking machine and power on the flocking machine. With the running of the briar dressing dish in the charging basket, the fluff is added into the charging system inside the flocking machine, is charged with positive charge, is accelerated by the ion accelerator and blast system, circumgyrates in the screwed pipeline and is erupted out equably along the exit direction of the screwed pipeline. We wave the nozzles right and left to make sure the fluff sprayed equably onto the pieces to be flocked, sweep it broadways and vertically and clean the fluff on the surface of the pieces to be flocked with air pressure gun between once and three times. After being solidified and cleaned, it can be packed. It can flock any shape, has equable flocking, good flocking effect and high flocking efficiency and doesn't affect the effect of the appearance of the pieces to be flocked.

The invention discloses a polyester alkali decrement and one-bath-dyeing one-step low-temperature processing method. The method comprises the steps: carrying out alkali decrement and one-bath-dyeing one-step processing on polyester by using a dipping process, and dissolving sodium hydroxide, a cation accelerant, a carrier, a dispersing agent and a disperse dye into a dye liquid, wherein the dye liquid is prepared from water, the concentration of the carrier is 4-15g/L, the concentration of the sodium hydroxide is 2-4g/L, and the concentration of the cation accelerant is 1*10<-5> to 10*10<-5>mol/L; placing a polyester fabric into the dye liquid according to the bath ratio of 1: (10-100); then, heating to 90-100 DEG C at the speed of 0.5-2 DEG C/min, preserving the heat for 20-100min; taking out the polyester fabric after the heat preservation is ended, washing the polyester fabric 2-5 times by using tap water, and then, carrying out reduction clearing at the temperature of 70-80 DEG C and the bath ratio of 1:50 for 10min by using 2g/L sodium hydroxide and 2g/L sodium hydrosulfite; next, taking out the fabric, and washing 2-6 times by using water; and finally, drying the fabric at the temperature of 70-80 DEG C. By using the method, the polyester alkali decrement and dyeing processing flow is shortened, the alkali decrement processing temperature is reduced, the consumptions of the sodium hydroxide and the cation accelerant are reduced, the production efficiency is increased, the energy sources are saved, the process is simple, no special requirement for the polyester fabric and equipment are needed, and the large-scale production can be realized by using conventional equipment, so that the method has a wide application prospect.

The invention provides a plasma cleaning device which comprises a plasma chamber, a base, a plasma generator, an ion accelerator and a filter, wherein the base is arranged in the plasma chamber and used for bearing a workpiece to be cleaned, the plasma generator is used for generating plasmas, the ion accelerator is used for generating an accelerating field for accelerating ions in the plasmas to form an ion beam, the filter is arranged on the path of the ion beam and is used for deflecting the movement direction of ions in the ion beam through a deflection field and filtering ions shot to the workpiece to be cleaned so as to reduce throughput of ions in the ion beam and further accurately control the intensity of ion bombardment; therefore dielectric surface property shifting or thickness loss caused by excessive ion beam bombardment can be avoided.

A tandem TOF mass spectrometer includes a pulsed ion source that generates a pulse of precursor ions from a sample to be analyzed. A first pulsed ion accelerator accelerates and refocuses a predetermined group of precursor ions. A first timed ion passes the predetermined group of precursor ions and rejects substantially all other ions. An ion fragmentation chamber fragments at least some of the precursor ions in the predetermined group. A second timed ion selector selects a predetermined range of masses centered on each precursor in the predetermined group and rejects substantially all other ions. A second pulsed ion accelerator accelerates and refocuses the selected precursor ions and fragments thereof. An ion mirror generates a reflected ion beam. An ion detector detects precursor ions and fragments, wherein a flight time from the second pulsed ion accelerator to the ion detector is dependent on a mass-to-charge ratio of the selected precursor ions and fragments thereof and nearly independent of an initial velocity distribution of ions in the pulse of ions.

An ion source includes a chamber. The ion source further includes a first hollow cathode having a first hollow cathode cavity and a first plasma exit orifice and a second hollow cathode having a second hollow cathode cavity and a second plasma exit orifice. The first and second hollow cathodes are disposed adjacently in the chamber. The ion source further includes a first ion accelerator between and in communication with the first plasma exit orifice and the chamber. The first ion accelerator forms a first ion acceleration cavity. The ion source further includes a second ion accelerator between and in communication with the second plasma orifice and the chamber. The second ion accelerator forms a second ion acceleration cavity. The first hollow cathode and the second hollow cathode are configured to alternatively function as electrode and counter-electrode to generate a plasma. Each of the first ion acceleration cavity and the second ion acceleration cavity are sufficient to enable the extraction and acceleration of ions.

It is an object of the present invention to provide an accelerator that can accelerate by itself all ions up to any energy level allowed by the magnetic fields for beam guiding, and provides an all-ion accelerator in which with trigger timing and a charging time of an induced voltage applied to an ion beam injected from a preinjector by induction cells for confinement and acceleration used in an induction synchrotron, digital signal processors for confinement and acceleration and pattern generators for confinement and acceleration generate gate signal patterns for confinement and acceleration on the basis of a passage signal of the ion beam and an induced voltage signal for indicating the value of the induced voltage applied to the ion beam, and intelligent control devices for confinement and acceleration perform feedback control of on/off of the induction cells for confinement and acceleration.

The invention relates to a digital pulse power supply synchronous timing trigger system for achieving a remote synchronous timing trigger control with many sets of digital pulse power supply.. The digital pulse power supply synchronous timing trigger system is characterized in that the trigger system comprises a trigger source server and the trigger source server is mutually connected with a control computer, the hardware of the trigger source server is a field programmable gata array (FPGA). The trigger source server is connected with a first-level fan-out machine which is respectively connected with multichannel second fan-out machines without time differences. The second fan-out machine is connected with a digital pulse power supply module. The digital pulse power supply synchronous timing trigger system achieves the synchronous starting or the grouped synchronous starting control of ion accelerator digital pulse power supply or related industry many sets of digital pulse power supply according to the setting time series. And the digital pulse power supply synchronous timing trigger system meets the requirements that the digital pulse power in the relevant fields can be started flexible timing synchronization under the remote control method.

The invention relates to the technical field of an acceleration mechanism of an ion accelerator, in particular to a bent wing-type radio-frequency quadrupole accelerator. The bent wing-type radio-frequency quadrupole accelerator is characterized by comprising a cavity, wherein four wings are arranged in the cavity, end plates are respectively arranged at the two ends of the cavity, a beam hole is arranged at the central position of each end plate, the central line of the two beam holes and the central axis of the cavity are on the same straight line, and a Pi-model stabilization rod and a tuner for adjusting frequency are further arranged on the cavity. By bending wings at pole head parts, the cross section size of the cavity is greatly reduced on the condition of no change on the total transverse length of the wings, and the bent wing-type radio-frequency quadrupole accelerator is very suitable for low-frequency beams; and meanwhile, due to the compatibility with the advantages of simplicity and effectiveness of a cooling system of the traditional four-wing radio-frequency quadrupole acceleration mechanism, the bent wing-type radio-frequency quadrupole accelerator is very suitable for a continuous-wave working state. Obvious advantages are shown on the aspects of reduction on processing difficulty of the radio-frequency quadrupole accelerator, reduction on engineering cost, improvement on running reliability and stability of a device and the like.