Patent•
Electron propulsion unit
08 Dec 1994-
TL;DR: An electron acceleration device uses thermionic fission cells, an electromagnetic scoop coil, and/or microwaves for power as discussed by the authors, where a power control junction and electron injector control and feed free electrons in packets into the acceleration components that consist of a series of either induction module units, or radio-frequency linacs module units.
Abstract: An electron acceleration device uses thermionic fission cells, an electromagnetic scoop coil, and/or microwaves for power. A power control junction and electron injector control and feed free electrons in packets into the acceleration components that consist of a series of either induction module units, or radio-frequency linacs module units, having quadrapole magnet units in series between the induction module units or RF linac units. The RF linac and quadrapole series are surrounded by a Klystron series. At the high speed electron exit from the device, deflector plates control the exit path of the electrons to direct the course of a craft or electrons to a work area.
Citations
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Patent•
13 Dec 1999TL;DR: In this paper, a compact coil design for a linear accelerator resonator (70) capable of resonating at a predetermined frequency was provided for a single-input single-out (SISO) linear accelerator (LASO) resonator.
Abstract: A compact coil design is provided for a linear accelerator resonator (70) capable of resonating at a predetermined frequency. The coil (90) comprises a plurality of generally circular coil segments (90a-90n), each of the coil segments having a polygonal cross section wherein flat surfaces (122) of adjacent coil segments face each other. The polygonal cross section may take the form of a rectangle having dimensions of length x and width y, wherein dimension x section defines the flat surfaces (122) of adjacent coil segments (90a-90n). The coil segments (90a-90n) are provided with a dual channel construction for providing the introduction of a cooling medium into the coil. The dual channel construction comprises an inlet passageway (118) and an outlet passageway (120) having separate a separate inlet (100) and outlet (102), respectively, at a first end (94) of the coil, and wherein the inlet and outlet passageways (118, 120) are connected and in communication with each other at a second end (96) of the coil.
11 citations
Patent•
29 Jun 2017TL;DR: In this article, the authors proposed a high-frequency acceleration cavity and an accelerator to increase the Q value compared to prior art normal conducting acceleration cavities, and power efficiency can be increased.
Abstract: The objective of the present invention is to provide an acceleration cavity and an accelerator such that the Q value can be increased compared to prior art normal conducting acceleration cavities, and power efficiency can be increased. This high-frequency acceleration cavity (1) comprises: a housing (3) whereof the inner peripheral surface is cylindrical in shape, and electrically conductive at least on the surface thereof; and a plurality of acceleration cells (2) provided inside the housing (3), each being a dielectric having formed in a central portion thereof an opening (5a) wherethrough a charged particle can pass. The housing (3) has a cylinder body (6) having a cylindrical shape, and end plates (7) provided at both ends of the cylinder body (6). A plurality of the acceleration cells (2) are disposed throughout from the end plate (7) at one end side to the end plate (7) at the other end side of the housing (3). Each of the acceleration cells (2) comprises: a cylinder body (4) having a diameter smaller than the internal diameter of the cylinder body (6) from the housing (3); and a disc portion (5) where the opening (5a) is formed, fixed onto the cylinder body (4) on the inner side of the cylinder body (4), and disposed in such a manner that the plate surface thereof is orthogonal to the charged particle passage axis.
1 citations
Patent•
30 Jun 2010
TL;DR: In this article, a method and apparatus for producing a linear thrust force, comprising an array of phase-shifted electric oscillations having frequency greater than or equal to ratio of the speed of electromagnetic waves in free space to length of the array (f ≥ c/L).
Abstract: A method and apparatus for producing a linear thrust force, comprising an array of phase-shifted electric oscillations having frequency greater than or equal to ratio of the speed of electromagnetic waves in free space to length of the array (f ≥ c/L). Operated at adequate frequencies and powers, such device can produce highly efficient levels of thrust force for propelling spacecrafts and satellites with low consumption of energy. Further comprises a custom amplifier for producing and radiating powerful electric oscillations by accelerating, decelerating, and retaking electrons, producing several megawatts of thrust power.
1 citations
Patent•
20 Jan 2014
TL;DR: In this paper, the authors proposed a method for selecting the comet nucleus of one of mini-comet in orbits approaching the Earth 3 as hitting space body (HSB) and a rocket engine unit exploiting comet nucleus evaporant as a working medium is launched in space from the Earth and placed in orbit 8 to approach said HSB.
Abstract: FIELD: transport.SUBSTANCE: set of invention release to space engineering, particularly, to displacement in space using space resources and can be used for hitting the dangerous space objects (DSO) Proposed method comprises selecting the comet nucleus of one of mini-comet in orbits 6 approaching the Earth 3 as hitting space body (HSB). Rocket engine unit exploiting comet nucleus evaporant as a working medium is launched in space from the Earth and placed in orbit 8 to approach said HSB. Landing thereto is carried out at point 9. Said rocket engine unit is used to change said HSB from initial orbit 7 to trajectory 10 that ensures its collision with DSO 3 at point 11. This imparts to DSB the impulse that changes it from initial orbit 4 that implies the collision of the Earth at point 5 to safe orbit. Device to this end (not shown) comprises said rocket engine unit, snapper with comet matter evaporator, power plant (with solar concentrator and astronavigation device. With snapper penetrated into comet nucleus, evaporator sublimates nucleus volatile matters. Evaporated vapors are heated by solar concentrator effuse from rocket engine nozzle generates the thrust. Astronavigator sets required direction of thrust vector.EFFECT: power savings in mission, lower operating period of engines, higher reliability.4 cl, 2 dwg
Patent•
04 May 2017
TL;DR: In this article, an AO subjecting the surface with the directed AO electron beam from the spacecraft hovering over the AO surface was used to increase reliability and safety of sampling materials from the surface.
Abstract: FIELD: physics.SUBSTANCE: group of inventions relates to the active research of the astronomical object (AO), such as an asteroid or a comet. The method includes the AO subjecting the surface with the directed AO electron beam from the spacecraft hovering over the AO surface. The evaporation products of the AO soil are captured by the material collector (a substrate with the lens hood) mounted on the device in front of the electron beam source.EFFECT: increasing reliability and safety of sampling materials from the AO surface.2 cl; 1 dwg
References
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Patent•
18 May 1981TL;DR: In this article, a resistor voltage divider has N terminals respectively connected to the N electrodes and resistances of the divider between adjacent ones of the electrodes have the same value, and a shorting bar is dimensioned and positioned to selectively engage terminals N, (N-1... 1.
Abstract: An ion beam implanter includes a high energy accelerator having N electrodes equally spaced along the path of an ion beam, where N is an integer greater than 2. A resistor voltage divider has N terminals respectively connected to the N electrodes. Resistances of the divider between adjacent ones of the electrodes have the same value. A variable DC voltage source applies a high positive voltage to terminal N of the divider, while the first terminal of the divider is grounded. Terminal N is connected to an electrode that is upstream of the electrode connected to the first terminal. A shorting bar is dimensioned and positioned to selectively engage terminals N, (N-1 . . . 1. Drive means stepwise moves the shorting bar so an end portion of the bar sequentially engages terminals N, (N-1) . . . 1 in order. The remainder of the bar engages terminals N, (N-1) . . . (a+1) while the bar end portion engages terminal a, where a is selectively every integer from 1 to N. The stepwise movement of the shorting bar is synchronized with variations of the DC source to maintain a substantially constant voltage gradient along the length of the unshorted electrodes despite variations in energy applied to the beam by the accelerator. The drive means includes a pneumatically activated motor having rods with differences in length between fully extended and fully retracted positions thereof in binary relationship with the distance between adjacent ones of the N electrodes.
28 citations
Patent•
02 Nov 1979
TL;DR: In this article, a free electron laser system and electron beam system using feedback feedback to enhance the energy efficiency of the system is presented. But the system does not consider the energy consumption of the free electron beam.
Abstract: A free electron laser system and electron beam system for a free electron laser which use rf feedback to enhance efficiency. Rf energy is extracted from an electron beam by decelerating cavities and returned to accelerating cavities using rf returns such as rf waveguides, rf feedthroughs, etc. This rf energy is added to rf klystron energy to lower the required input energy and thereby enhance energy efficiency of the system.
27 citations
Patent•
30 Sep 1991TL;DR: In this paper, the authors proposed a capacitated particle accelerator capable of accelerating arbitrarily charged particles to an arbitrary energy level and resonating at a low frequency suitable for accelerating heavy ions, including quadruple electrodes.
Abstract: A charged particle accelerator capable of accelerating arbitrarily charged particles to an arbitrary energy level and resonating at a low frequency suitable for accelerating heavy ions, including quadruple electrodes which are supplied with high frequency power and disposed in the direction of the center axis of a cylinder-shaped container and a resonant circuit having a capacitor and an inductor for supplying a voltage to the quadruple electrodes. The capacitor is composed of a plurality of metallic plates provided along the center axis at specified intervals in the vicinity of the quadruple electrodes, and a plurality of conductive supports supporting the metallic plates which are directly connected to the container together with the supports and the container form the inductor. Since the metallic plates and the quadruple electrodes are electrically directly connected to each other, an arbitrary resonant frequency can be obtained by adjusting the intervals between the plurality of metallic plates with a position adjusting mechanism. In one embodiment, flat electrodes are protruded from opposite sides of the inner wall of the container and are disposed in parallel to the center axis and close to each other to constitute a capacitor, which makes it possible to have a resonant frequency in a low frequency range. To obtain a large Q value, the surface current resistance is lowered by covering the inner wall of the container and the surfaces of the flat plate electrodes with a superconductive material.
25 citations