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公开(公告)号：US3469118A
公开(公告)日：1969-09-23
申请号：US3469118D
申请日：1966-06-15
Applicant: NAT ELECTROSTATICS CORP
Inventor： HERB RAYMOND G , FERRY JAMES A
CPC classification number: H02N1/08
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Patent Agency Ranking
公开(公告)号：US3796917A
公开(公告)日：1974-03-12
申请号：US3796917D
申请日：1972-08-21
Applicant: NAT ELECTROSTATICS CORP
Inventor： HILLER D
Abstract: The disclosed ionizers are of the orbitron type utilizing a high voltage anode in the form of a wire or rod extending axially within an outer generally cylindrical electrode which may be in the form of a cylindrical conductive screen connected to the negative terminal of the power supply. One or more of the ionizers are mounted within a vacuum space containing residual gas molecules to be ionized. The resulting ions may be propelled by electrostatic field forces to the cylindrical screen and also to the walls of the vacuum chamber where the ions may be absorbed or gettered by freshly deposited titanium or some other gettering material. By this mechanism of ion getter pumping, gas molecules are effectively removed from the vacuum space so as to improve the vacuum. In accordance with the present invention, electrons are injected into the space between the axial anode and the outer cylindrical electrode by an electron-emitting electrode which is typically in the form of a generally circular loop or ring encircling the axial anode and spaced inwardly from the cylindrical outer electrode in the radial electric field beween the inner and outer electrodes. The electron-emitting electrode is preferably energized with a direct current which causes heating of the electron-emitting electrode so that electrons are emitted thermionically therefrom. The current also produces an axial magnetic field in the space between the electron-emitting electrode and the anode. The combination of the radial electric field and the axial magnetic field causes a high percentage of the emitted electrons to go into orbits around the anode so that the electrons have extremely long mean-free paths before finally being attracted to the anode. In this way, the orbiting electrons produce a high degree of ionization of the residual gas molecules in the vacuum space. The axial magnetic field may be enhanced by an electromagnet or a permanent magnet disposed near the circular electron-emitting electrode and preferably aligned axially therewith. The electromagnet may take the form of a loop having one or more turns disposed near the electron-emitting electrode or a coil having a multiplicity of turns and preferably having a core of magnetic material. The permanent magnet may be generally cylindrical in shape and disposed axially. The ionizer may also be used to provide an ion gage in which the ion current to the cylindrical electrode is measured.
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公开(公告)号：US3473064A
公开(公告)日：1969-10-14
申请号：US3473064D
申请日：1967-08-02
Applicant: NAT ELECTROSTATICS CORP
Inventor： HERB RAYMOND G
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公开(公告)号：US3789298A
公开(公告)日：1974-01-29
申请号：US3789298D
申请日：1971-07-29
Applicant: NAT ELECTROSTATICS CORP
Inventor： HERB R
CPC classification number: G01T1/29
Abstract: A beam scanning electrode is mounted on a rotor and is movable repeatedly across a beam of high energy particles when the rotor is rotated. The scanning electrode is mounted within a beam tube having a conductive wall to which the scanning electrode is electrically connected, as by a wiping contactor. The impingement of the beam upon the scanning electrode causes the emission of secondary electrons which are gathered by a collector electrode, spaced from the scanning electrode and insulated from the conductive wall. An output lead is connected to the collector electrode and is brought out of the tube by a feed-through insulator or the like. In a modified arrangement, the collector electrode comprises a material which scintillates or emits photons due to the impingement of the secondary electrons. The photons are then detected and measured by a photomultiplier or some other photoelectric device.
Abstract translation: 光束扫描电极安装在转子上，并且当转子旋转时可以重复地跨越高能粒子束移动。 扫描电极通过擦拭接触器安装在具有导电壁的光束管中，扫描电极电连接到该导电壁。 光束在扫描电极上的撞击导致由集电极聚集的二次电子的发射，与扫描电极间隔开并与导电壁绝缘。 输出引线连接到集电极，并通过馈通绝缘体等从管中取出。 在改进的布置中，集电极包括由于二次电子的撞击而闪烁或发射光子的材料。 然后通过光电倍增器或其他光电装置检测和测量光子。
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公开(公告)号：US3631282A
公开(公告)日：1971-12-28
申请号：US3631282D
申请日：1969-01-23
Applicant: NAT ELECTROSTATICS CORP
Inventor： HERB RAYMOND G
Abstract: The accelerating tube of the present invention is provided with means for continuously heating the tube while it is in operation. This has the surprising effect of greatly increasing the ability of the tube to withstand high voltages. Thus, an increased operating voltage may be employed when the tube is heated. The heating of the tube drives off condensed gases from the interior surfaces of the tube, while also preventing any condensation of residual gases upon such surfaces. Various means may be provided to heat the tube. It is particularly advantageous to subdivide the tube into tubular sections with separator electrodes or diaphragms therebetween. The ion beam passes within the tube through apertures in the separators. It is preferred to heat the separators by causing electrical currents to pass through the separators. The electrical currents are preferably supplied by a series of generators driven by an insulating shaft. Heat may also be supplied externally to the accelerating tube, by means of heating coils or lamps. Another arrangement is to heat the entire tank in which the tube is enclosed.
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公开(公告)号：US3612919A
公开(公告)日：1971-10-12
申请号：US3612919D
申请日：1969-05-29
Applicant: NAT ELECTROSTATICS CORP
Inventor： HERB RAYMOND G , FERRY JAMES A
CPC classification number: H02N1/08
Abstract: A high voltage is developed by conveying electrostatic charges to a high-voltage electrode, by means of an endless conveyor chain comprising conductive links alternating with insulating links. The conductive links comprise cylindrical pellets with cylindrical openings extending axially therein. The insulating links have enlarged spherically rounded end portions swingably received in the cylindrical openings. Pivot pins extend between the enlarged end portions and the cylindrical pellets. The conveyor is trained around wheels having spring contactors thereon for transferring charges to and from the pellets. Channel-shaped induction electrodes are positioned opposite the conveyor where it makes and breaks contact with the wheels. Operating voltages for some of the induction electrodes are obtained by idler pulleys contacting the conveyor. Each idler pulley preferably has one or more spring contactors thereon for engaging the pellets. Additional induction electrodes are preferably provided opposite the idler pulleys.
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