Class 376/114 - Self-contained neutron sources (e.g., neutron or accelerator tube)

Subclass of Class 376 - Induced nuclear reactions: processes, systems, and elements
Definition: Subject matter wherein all reacting nuclei are contained
No. of patents: 28
Last issue date: 04/22/2008

Number	Title	Issue Date
7362842	Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta...	04/22/2008
7342988	Neutron tubes A neutron tube or generator is based on a RF driven plasma ion source having a quartz or other chamber surrounded by an external RF antenna. A deuterium or mixed deuterium/tritium (or even just a tritium) plasma is generated in the chamber and D or D/T (or T) ions a...	03/11/2008
7139349	Spherical neutron generator A spherical neutron generator is formed with a small spherical target and a spherical shell RF-driven plasma ion source surrounding the target. A deuterium (or deuterium and tritium) ion plasma is produced by RF excitation in the plasma ion source using an RF antenn...	11/21/2006
6925137	Small neutron generator using a high current electron bombardment ion source and methods of treating tumors therewith A neutron generator includes a modular arrangement of a high current electron bombardment ion source, providing deuterium(D) and/or tritium(T) ions, a high voltage acceleration stage to accelerate the ions and raise the ion energy to the order of 100 keV, and an occ...	08/02/2005
6907097	Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta...	06/14/2005
6870894	Compact neutron generator A compact neutron generator has at its outer circumference a toroidal shaped plasma chamber in which a tritium (or other) plasma is generated. A RF antenna is wrapped around the plasma chamber. A plurality of tritium ion beamlets are extracted through spaced extract...	03/22/2005
6838713	Dual-height cell with variable width power rail architecture A standard cell architecture with a basic cell that spans multiple rows of the standard cell. This multi-row basic cell may be a dual-height cell that spans two rows, or it may span more than two rows. The multi-row basic cell may be intermixed in a standard cell de...	01/04/2005
6577697	Field analysis of geological samples using delayed neutron activation analysis A system and method for rapidly analyzing elemental abundances in rock or soil samples (14) under field conditions. The system uses a portable neutron source (12) to allow neutron activation analysis of elements having identifiable radioactive decay chara...	06/10/2003
6141395	Sealed neutron tube A sealed neutron tube is provided, in which an insulating structure is designed to be solid to enhance the shock-proof performance thereof, an ion beam drawn out from an ion source is pulsated more rapidly, and the lifetime of a target is increased withou...	10/31/2000
5949835	Steady-state, high dose neutron generation and concentration apparatus and method for deuterium atoms A steady-state source of neutrons is produced within an electrically grounded and temperature controlled chamber confining tritium or deuterium plasma at a predetermined density to effect implantation of ions in the surface of a palladium target rod coate...	09/07/1999
5745537	Neutron tube with magnetic confinement of the electrons by permanent magnets and its method of manufacture A sealed neutron tube with magnetic confinement of the electrons by permanent magnets. The sealed tube contains a D-T gas mixture under low pressure, fitted with a target, an extraction-acceleration electrode (EAE) and an ion source with 2n Penning cells ...	04/28/1998
5745536	Secondary electron ion source neutron generator A neutron generator employing an electron emitter, an ion source bombarded by the electrons from the electron emitter, a plasma containment zone, and a target situated between the plasma containment zone and the electron emitter. The target contains occlu...	04/28/1998
5729580	Hydrogen ion array acceleration generator and method A novel hydrogen ion array acceleration generator and method are presented wherein there is provided along a transversely extending diffusion/emission grid surface and within an evacuated contained environment, an array of hydrogen ions at the interstitia...	03/17/1998
5293410	Neutron generator A neutron generator, comprising: (i) an ion source comprising an anode and a thermionic cathode disposed in an ionizable gas environment (e.g. hydrogen isotope); (ii) means for heating the cathode so that the latter emits electrons which, when colliding with t...	03/08/1994
5215703	High-flux neutron generator tube A neutron generator tube includes an ion source having at least one anode (6), at least one cathode (7) having at least one extraction port (12), and an accelerator electrode (2) arranged so as to project at least one ion beam from the ion source onto a t...	06/01/1993
5112564	Ion extraction and acceleration device for reducing the re-acceleration of secondary electrons in a high-flux neutron tube A device is set forth for the extraction and acceleration of ions in a high flux sealed neutron tube containing a low-pressure gaseous deuterium-tritium mixture, where an ion source (12) supplies several ion beams (3a, 3b, . . . 3e) which are projected on...	05/12/1992
5078950	Neutron tube comprising a multi-cell ion source with magnetic confinement A sealed neutron tube is set forth which contains a low-pressure gaseous deuterium-tritium mixture wherefrom an ion source forms an ionized gas which is guided by a magnetic electron confinement field produced by magnets (8), which source emits the ion be...	01/07/1992
5053184	Device for improving the service life and the reliability of a sealed high-flux neutron tube A device for improving the service life and the reliability of a sealed high-flux neutron tube, comprising a first part and a second part which are separated by an accelerator electrode (13). The accelerator electrode forms a shield between said parts and...	10/01/1991
4938916	Flux enhancement for neutron radiography inspection device A neutron radiography system having a high energy neutron generator (100) of the type comprising an ion accelerator (106) and a tritium target (110) located downstream of the accelerator. The generator is disclosed in a housing (22) containing a moderator...	07/03/1990
4935194	High-flux neutron generator comprising a long-life target A neutron generator comprising a target (16) which is struck by a hydrogen isotope ion beam and which is formed by a structure comprising a thin absorbing active layer (19) deposited on a carrier layer (18). In accordance with the invention, on the two ab...	06/19/1990
4830813	Lightweight, low energy neutron radiography inspection device A lightweight, low energy neutron radiography inspection device (20) includes an inspection head (22) with a sealed tube neutron generator (44) using a deuterium target (110) for emitting relatively low energy neutrons. A moderating fluid (140) within the...	05/16/1989
4675145	Magnetically insulated diode for generating pulsed neutron and gamma ray emissions A magnetically insulated diode employs a permanent magnet to generate a magnetic insulating field between a spaced anode and cathode in a vacuum. An ion source is provided in the vicinity of the anode and used to liberate ions for acceleration toward the ...	06/23/1987
4582999	Thermal neutron collimator In a system for generating thermal (14 MeV) neutrons containing an ionic accelerator, a novel thermal neutron collimator for producing a beam of collimated thermal neutrons is disclosed. The apparatus includes a substantially hollow collimator tube (10) h...	04/15/1986
4437082	Apparatus for continually upgrading transformer dielectric liquid Electrical inductive apparatus having a tank, an insulating and cooling liquid in the tank and an electrical winding structure immersed in the liquid, the liquid having a low vapor pressure and containing contaminants derived from various sources within t...	03/13/1984
4310765	Neutron accelerator tube having improved ionization section A neutron accelerator tube having a target section, an ionization section, and a replenisher section for supplying accelerator gas to the ionization section. The ionization section is located between the target and the replenisher section and includes an ...	01/12/1982
4282440	Neutron accelerator tube having improved ionization section A neutron accelerator tube having a target section, an ionization section, and a replenisher section for supplying accelerator gas to the ionization section. The ionization section is located between the target and the replenisher section and includes an ...	08/04/1981
4280048	Neutron activation probe A neutron activation probe comprises a pulsed neutron source in series with a plurality of delayed neutron detectors for measuring radioactivity in a well borehole. The neutron source emits neutrons which produce fission in uranium in the ore body and the...	07/21/1981
4124834	Electrical inductive apparatus Electrical inductive apparatus having a tank, an insulating and cooling liquid in the tank, and an electrical winding structure immersed in the liquid. The insulating liquid includes an inorganic constituent in its formulation. The insulating liquid also ...	11/07/1978

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Class 376/114 - Self-contained neutron sources (e.g., neutron or accelerator tube)