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| Number | Title | Issue Date |
| 7445591 | Treatment of waste products The invention provides a method for the encapsulation of fine particulate materials which comprises treating these materials with a microfine hydraulic inorganic filler which, typically, comprises a cementitious material, such as Portland Cement. The filler is groun... | 11/04/2008 |
| 7358503 | Tomography of solid materials The invention provides a method for the identification of deposits of solid materials in process plants, the method comprising the creation of a theee-dimensional image by means of tomography, preferably passive tomography, most preferably gamma-ray tomography. Typi... | 04/15/2008 |
| 7195832 | Fuel cells A method of production and apparatus for a fuel cell having three nested truncated cones. The inner cone is made of a porous metal sponge, such as nickel, and provides a media through which fuel can pass. The second cone is provided around the inner cone in use, and... | 03/27/2007 |
| 7107728 | Apparatus for the storage of hazardous materials The invention provides a stabilizing device for inclusion in a stack of containers in which hazardous waste is held, wherein the stabilizing device comprises a table for supporting a container in the stack, and a base, the table being movable relative to the base so... | 09/19/2006 |
| 7043411 | Monitoring and analysis A method and apparatus for monitoring a neutron source are provided, the method comprising: i) providing a plurality of neutron detectors (16) at known positions relative to one another; ii) monitoring the neutron detection rates for the detectors caused by t... | 05/09/2006 |
| 6809329 | Container for waste A sealable container for receiving toxic waste for long-term storage is described, the container comprising sheet metal members welded together to form a main fillable volume; four hollow, sheet metal, vertically directed leg portions situated at corner positions on... | 10/26/2004 |
| 6805253 | Protective casing A casing for the protection of an article contained within the casing is described, the protective casing comprising: at least two casing members which are assemblable to constitute a casing having an internal volume to receive the article, each of said at least two... | 10/19/2004 |
| 6747178 | Method of performing a chemical reaction According to the present invention there is provided a method of carrying out a chemical reaction between at least two fluids, the method comprising providing respective flow paths for the at least two fluids, said flow paths communicating with each other in a regio... | 06/08/2004 |
| 6740298 | Apparatus for dissolving nuclear fuel A nuclear fuel dissolution apparatus which comprises a perforated sloping ramp contained within a process chamber for containing solvent for the fuel, a pulsation member which in use creates pulses in solvent in the process chamber, the perforations being designed t... | 05/25/2004 |
| 6717153 | Apparatus and methods for monitoring emissions Ions produced by radioactive gases present in air impact on the sensitivity of contamination measuring instruments which detect ions generated by radioactive materials present on an item. Methods and apparatus address this issue by conducting a measurement of ions g... | 04/06/2004 |
| 6664539 | Methods for evaluating gamma detectors and gamma detector instrument response, particularly for use in investigation emissions from spent nuclear fuel rods A method of investigating the response of an instrument to gamma emissions using a source package includes providing a source package on one side of a collimator including an aperture and a detector on the other side of the collimator relative to the sour... | 12/16/2003 |
| 6623710 | Nuclear fuel reprocessing A spent fuel reprocessing method including the steps of partitioning U and Pu(III) in a solvent by solvent extraction and subsequently polishing the solvent in a neptunium rejection operation for removing Np therefrom. The solvent obtained from the neptun... | 09/23/2003 |
| 6577699 | Container for nuclear fuel elements According to the present invention there is provided a container for the storage and transport of nuclear fuel elements comprising a plurality of elongate compartments for receiving the nuclear fuel elements, the compartments being defined by a first set ... | 06/10/2003 |
| 6521809 | Treatment of organic materials Processes for the treatment of solutions used for the decontamination of radioactively contaminated surfaces wherein the solution contains radioactive metal ions and organic complexing agents are described herein. The processes include treating the soluti... | 02/18/2003 |
| 6515189 | Reactions of aromatic compounds A method of reacting an aromatic compound with an immiscible reacting agent involves the passage of the reactant along a flow path having a width of from 10 to 1000 μm in such a way that essentially laminar flow of the reactant takes place. Reaction take... | 02/04/2003 |
| 6468495 | Treatment of molten salt reprocessing wastes A method of removing from a metal salt ionic species contained therein involves contacting the metal salt with an ionic liquid to dissolve the metal salt, the ionic species or both. At least in the case where both the metal salt and the ionic species are ... | 10/22/2002 |
| 6444097 | Radioactive decontamination A method for the removal of embedded contamination from a metallic surface in which a laser beam is directed on to the contaminated surface. The laser beam has sufficient power density to cause direct ejection of laser-generated melt pool liquid from the ... | 09/03/2002 |
| 6444182 | Nuclear fuel reprocessing using hydrophilic substituted hydroxylamines The spent nuclear fuel reprocessing method includes contacting an organic phase containing Np(VI) with a hydrophilic substituted hydroxylamine in which at least one N--H hydrogen of the hydroxylamine is replaced by an organic substituent, there being at l... | 09/03/2002 |
| 6441336 | Process and apparatus for collecting and/or separating ionized species A collection method for an at least partially ionised sample is provided in which the part of the sample to be collected is discharged using an electrical conductor and the discharge part of the sample then leaves the confines of a retaining magnetic fiel... | 08/27/2002 |
| 6423199 | Electrochemical ion exchange using carbollide systems An electrochemical ion exchange cell comprises a metal carbollide as ion exchange material. The carbollide is preferably a polynuclear cobalt dicarbollide and is typically substituted by chlorine. Also novel are polynuclear metal carbollides comprising a ... | 07/23/2002 |
| 6372872 | Detection and extraction of uranium and other ions in a solution A method for producing a system adapted to interact with a dissolved species, the method comprising providing a first component incorporating a complexing functionality, X, and a polymerizable functionality, R, the complexing functionality being capable o... | 04/16/2002 |
| 6365901 | Relating to monitoring ion sources The apparatus and method provide techniques for monitoring the position on alpha contamination in or on items or locations. The technique is particularly applicable to pipes, conduits and other locations to which access is difficult. The technique uses in... | 04/02/2002 |
| 6362485 | Neutron radiation detector A neutron monitoring instrument, principally of the survey type, is provided with an inner neutron detector(s) enclosed in a layer of neutron attenuating material and one or more outer neutron detectors provided on the attenuating layer and enclosed in a ... | 03/26/2002 |
| 6359280 | Detectors The apparatus and method provide techniques through which both alpha and beta emission determinations can be made simultaneously using a simple detector structure. The technique uses a beta detector covered in an electrically conducting material, the elec... | 03/19/2002 |
| 6353230 | Monitoring materials The apparatus and method provide techniques for effectively implementing alpha and/or beta and/or gamma monitoring of items or locations as desired. Indirect alpha monitoring by detecting ions generated by alpha emissions, in conjunction with beta and/or ... | 03/05/2002 |
| 6331706 | Collection of ions The apparatus and method provide an improved technique for detecting ions as the area from which ions are attracted to a detector is increased, consequently increasing the number of ions detected. This is achieved by providing the outer electrodes of the ... | 12/18/2001 |
| 6331707 | Electrostatic monitoring The apparatus and method provide a technique for more simply measuring alpha and/or beta emissions arising from items or locations. The technique uses indirect monitoring of the emissions by detecting ions generated by the emissions, the ions being attrac... | 12/18/2001 |
| 6326626 | Relating to ion detection The apparatus and method provide a technique for improving detection of alpha and/or beta emitting sources on items or in locations using indirect means. The emission forms generate ions in a medium surrounding the item or location and the medium is then ... | 12/04/2001 |
| 6327320 | Tube loading apparatus An apparatus for succesively loading solid objects (19) into a tube (27), for instance, nuclear fuel pellets into a nuclear fuel tube, includes means (17) for feeding the objects towards one, open end (29) of the tube. A reduced pressure is induced betwee... | 12/04/2001 |
| 6323455 | Separation of isotopes by ionisation for processing of nuclear fuel materials Processing apparatus and methods are provided which involve the selective ionization of a feed material; the separation of ionized and non-ionized species; a selective excitation of the still ionized species; introduction of a chemical material to cause s... | 11/27/2001 |
| 6301320 | Nuclear fuel assembly having MOX rods and MOX-gadolinia rods Nuclear fuel assembly configurations are provided for mixed oxide fuels. Neutron poisons are provided within the MOX of certain fuel rods in the fuel assembly, those fuel rods being preferentially grouped towards the periphery of the fuel assembly. In thi... | 10/09/2001 |
| 6296767 | Method and apparatus for diffusive transfer between immiscible fluids Apparatus for carrying out a process between first and second immiscible fluids, comprises first and second channels defining flow paths, for permitting fluid flow of respective first and second immiscible fluids therethrough. Portions of the flow paths a... | 10/02/2001 |
| 6267850 | Separation of isotopes by ionization Improved processing apparatus and methods are provided which involve the selective ionisation of a feed material and the separation of ionised and non-ionised species. Introduction of a chemical material to cause selective transition to a non-ionised and/... | 07/31/2001 |
| 6130096 | Chemical complexes Rotaxanes and pseudorotaxanes, methods of making them, intermediates in their formation and methods of using them in sensors are provided based upon changes in color absorption upon cation contact.... | 10/10/2000 |
| 6013386 | Solid oxide fuel cells with specific electrode layers A solid oxide fuel cell and method of production are provided. The cell may have a layer of electrolyte material and a first and second electrode on either side thereof. The electrodes are separated from electrolyte by separator layers which are a mixed c... | 01/11/2000 |
| 5991017 | Inspecting the surface of an object An arrangement for inspecting the surface of a rotating object (1) which includes object retaining means for retaining whilst rotating the object, means (3) for irradiating the surface of an object when retained and rotated by the object retaining means w... | 11/23/1999 |
| 5948214 | Isotope separation A method of isotope separation includes vaporisation and atomising in an evacuated chamber a supply of the element whose isotopes are to be separated to form a stream of atoms of the element in the chamber. The supply which is vaporized includes an involi... | 09/07/1999 |
| 5945754 | Energy storage and conversion apparatus An energy storage and conversion apparatus (1) comprising a containment (5) defining a vacuum chamber (7), a support shaft (9) within the vacuum chamber (7), a stator (11) on the shaft (9) and a cylindrical rotor (13) which, in use, is driven by the stato... | 08/31/1999 |
| 5917875 | Apparatus for inspecting nuclear fuel assemblies Apparatus for rectifying the tendency of a fuel assembly (1) to incline from the perpendicular has a top nozzle support (19) and a base assembly (18) for supporting, respectively, a top nozzle (7) and a bottom nozzle (2) of the fuel assembly. Incorporated... | 06/29/1999 |
| 5912519 | Energy storage and conversion apparatus An energy storage and conversion apparatus (1) comprising a containment (5) defining a vacuum chamber (7), a substantially vertical shaft within the vacuum chamber (7), a stator (11) on the shaft (9), and a cylindrical rotor (13) which, in is driven by th... | 06/15/1999 |
