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Alchemy Index



Transmutation Patents



US Patent # 7,012,168
Boron-based containment matrix for the storage or transmutation of long-life radioactive elements



US Patent # 6,442,226
Accelerator-driven transmutation of spent fuel elements
Venneri, et al.
Abstract -- An apparatus and method is described for transmuting higher actinides, plutonium and selected fission products in a liquid-fuel subcritical assembly. Uranium may also be enriched, thereby providing new fuel for use in conventional nuclear power plants. An accelerator provides the additional neutrons required to perform the processes. The size of the accelerator needed to complete fuel cycle closure depends on the neutron efficiency of the supported reactors and on the neutron spectrum of the actinide transmutation apparatus. Treatment of spent fuel from light water reactors (LWRs) using uranium-based fuel will require the largest accelerator power, whereas neutron-efficient high temperature gas reactors (HTGRs) or CANDU reactors will require the smallest accelerator power, especially if thorium is introduced into the newly generated fuel according to the teachings of the present invention. Fast spectrum actinide transmutation apparatus (based on liquid-metal fuel) will take full advantage of the accelerator-produced source neutrons and provide maximum utilization of the actinide-generated fission neutrons. However, near-thermal transmutation apparatus will require lower standing inventories of plutonium and higher actinides. Uranium, presently the largest volume constituent in nuclear waste, is fully utilized and not discharged as waste. Since no plutonium, higher actinides or fission products are present in the reconstituted fuel elements, the present processes can be used repeatedly. Since the performance of the existing reactors is not changed, full utilization of both thorium and uranium resources is achieved.



US Patent # 6,233,299
Assembly for transmutation of a long-lived radioactive material
Wakabayashi
Abstract -- A new transmutation assembly permits an efficient transmutation of a long-lived radioactive material (long-lived FP nuclides such as technetium-99 or iodine-129) which was produced in the nuclear reactor. Wire-type members of a long-lived radioactive material comprised of metals, alloys or compounds including long-lived FP nuclides are surrounded by a moderator material and installed in cladding tubes to form FP pins. The FP pins, and nothing else, are housed in a wrapper tube to form a transmutation assembly. The wire-type members can be replaced by thin ring-type members. The transmutation assemblies can be selectively and at least partly loaded into a core region, a blanket region or a shield region of a reactor core in a fast reactor. From a viewpoint of reducing the influence on the reactor core characteristics, it is optimal to load the transmutation assemblies into the blanket region.



US Patent # 6,233,298
Apparatus for transmutation of nuclear reactor waste
Bowman
Abstract -- A subcritical reactor-like apparatus for treating nuclear wastes, the apparatus comprising a vessel having a shell and an internal volume, the internal volume housing graphite. The apparatus having means for introducing a fluid medium comprising molten salts and plutonium and minor actinide waste and/or fission products. The apparatus also having means for introducing neutrons into the internal volume wherein absorption of the neutrons after thermalization forms a processed fluid medium through fission chain events averaging approximately 10 fission events to approximately 100 fission events. The apparatus having additional means for removing the processed fluid medium from the internal volume. The processed fluid medium typically has no usefulness for production of nuclear weapons.



US Patent # 5,848,110
Method and apparatus for transmutation of atomic nuclei
Maenchen, et al.     
Abstract -- The present invention addresses the problems outlined above. An accelerator based on a combination of a high repetition rate high energy pulsed power supply (RHEPP) and a magnetically-injected anode plasma (MAP) source diode is used to provide pulsed particle beams having intermediate energy (0.2-20 MeV) and average power levels of hundreds of kilowatts to megawatts. This will increase the rate of isotopic production by 2-3 orders of magnitude over processes based on conventional accelerators. Any gaseous ion can be accelerated with this technology (proton, deuteron, and helium beams are of special interest). This capability can be applied to transmute target nuclei selectively into desired isotopes. RHEPP/MAP accelerators are also extremely power efficient and relatively small in size, making application of small units practical in, for example, major local or regional medical facilities. Finally, the use of relatively low beam particle energies reduces or eliminates the problem of undesired products and the subsequent generation of radioactive waste. Although the invention is being discussed in terms of embodiment via the RHEPP/MAP system, any pulsed ion beam generator having sufficient ion kinetic energy and total average beam current can be used in the same manner.



US Patent # 5,764,715
Method and apparatus for transmutation of atomic nuclei
Maenchen, et al.



US Patent # 5,160,696
Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux
Bowman
Abstract -- Apparatus for nuclear transmutation and power production using an intense accelerator-generated thermal neutron flux. High thermal neutron fluxes generated from the action of a high power proton accelerator on a spallation target allows the efficient burn-up of higher actinide nuclear waste by a two-step process. Additionally, rapid burn-up of fission product waste for nuclides having small thermal neutron cross sections, and the practicality of small material inventories while achieving significant throughput derive from employment of such high fluxes. Several nuclear technology problems are addressed including 1. nuclear energy production without a waste stream requiring storage on a geological timescale, 2. the burn-up of defense and commercial nuclear waste, and 3. the production of defense nuclear material. The apparatus includes an accelerator, a target for neutron production surrounded by a blanket region for transmutation, a turbine for electric power production, and a chemical processing facility. In all applications, the accelerator power may be generated internally from fission and the waste produced thereby is transmuted internally so that waste management might not be required beyond the human lifespan.



US Patent # 6,738,446
System and method for radioactive waste destruction
Venneri, et al.
Abstract -- A method for transmuting spent fuel from a nuclear reactor includes the step of separating the waste into components including a driver fuel component and a transmutation fuel component. The driver fuel, which includes fissile materials such as Plutonium.sup.239, is used to initiate a critical, fission reaction in a reactor. The transmutation fuel, which includes non-fissile transuranic isotopes, is transmuted by thermal neutrons generated during fission of the driver fuel. The system is designed to promote fission of the driver fuel and reduce neutron capture by the driver fuel. Reacted driver fuel is separated into transuranics and fission products using a dry cleanup process and the resulting transuranics are mixed with transmutation fuel and re-introduced into the reactor. Transmutation fuel from the reactor is introduced into a second reactor for further transmutation by neutrons generated using a proton beam and spallation target.



AU2001297883
Method and apparatus for the transmutation of nuclear waste with tandem production of tritium
Inventor:  EL-SHARAWY EL-BADAWY A



JP2009128300
ELEMENT TRANSMUTATION METHOD AND ENERGY GENERATION METHOD
Inventor:  YABUUCHI NORIO       



JP2009128052
NUCLEAR BATTERY       
Inventor:  ITO TAKEHIKO ; IWAMURA YASUHIRO



RU2343575
METHOD OF LONG-LIVING RADIONUCLIDES FIXATION FOR STORAGE AND TRANSMUTATION       
Inventor:  TIKHONOV VALERIJ IVANOVICH [RU] ; KAPUSTIN VALERIAN KONSTANTINOVICH



JP2008308383
METHOD FOR MANUFACTURING SILICON SINGLE CRYSTAL       
Inventor:  YAMATO MITSUHIRO       



RU2340966
METHOD OF FIXATION OF RADIOISOTOPE I-129       
Inventor:  TIKHONOV VALERIJ IVANOVICH [RU] ; KAPUSTIN VALERIAN KONSTANTINOVICH



CN101325092
Solution stack for burning plutonium and transmutation of neptunium-237 or americium-241       
Inventor:  YINGHUA WU [CN] ; LIANJIE WANG



US2008240330
Compact Device for Dual Transmutation for Isotope Production Permitting Production of Positron Emitters, Beta Emitters and Alpha Emitters Using Energetic Electrons       
Inventor:  HOLDEN CHARLES



US2008232532
Apparatus and Method for Generation of Ultra Low Momentum Neutrons       
Inventor:  LARSEN LEWIS G [US] ; WIDOM ALAN



NL1033078
Energy generating process, by applying voltage between cathode comprising transmutation elements and anode in reactor vessel containing plasma       
Inventor:  GEUS ARIE MELIS DE [US]       



MX9702606
TRANSMUTATION REACTOR TO IMPROVE FUEL COMBUSTION IN INTERNAL COMBUSTION ENGINES.       
Inventor:  LARA ESTANISLAO MARTINEZ



US2008123793
Thermal power production device utilizing nanoscale confinement       
Inventor:  LOAN JAMES F [US] ; COOPER WILLIAM



NL1031962
Energy generating process for producing electricity, comprises electron discharge in flow of nitrogen or air in order to cause nuclear transmutation of nitrogen into carbon monoxide       
Inventor:  GEUS ARIE MELIS DE



US2007297554
Method And System For Production Of Radioisotopes, And Radioisotopes Produced Thereby       
Inventor:  LAVIE EFRAIM [IL] ; SILVERMAN IDO



CN101061552
System and method for radioactive waste destruction       
Inventor:  MIKE VENNERI FRANCESCO BAXTER



JP2007322202
METHOD, DEVICE AND PROGRAM FOR PREDICTING NUCLEAR REACTION IN FLOCCULATION SYSTEM, AND METHOD FOR DETECTING SUBSTANCE AFTER NUCLIDE TRANSMUTATION       
Inventor:  ITO TAKEHIKO ; IWAMURA YASUHIRO



WO2006005813
METHOD AND DEVICE FOR TRANSMUTATION OF NUCLEONS FREE OF PRIOR OR PERMANENT PLASMA             
Inventor:  VITRAC GERAUD



GB1187188
Nuclear Conversion Process.             
Inventor:  WESTCOTT CARL HENRY



US2005082469
Neutron-driven element transmuter
Inventor:  CARLO RUBBIA



JP2005062025
METHOD FOR INCREASING NUCLEAR TRANSMUTATION QUANTITY FROM NUCLEAR TRANSMUTATION DEVICE AND NUCLEAR TRANSMUTATION DEVICE
Inventor:  SAKANO MITSURU ; ITO TAKEHIKO



US2004047443
Electron capture by magnetic resonance
Inventor(s):     BONDOC EDWIN L [PH]
Also published as:    WO03019219  (A1)     
Abstract -- The process of capturing electron by subjecting proton to magnetic resonance until its magnetic moment is in opposite direction relative to the electron's magnetic moment. As soon as the particles' magnetic moments are opposite in direction, spinlocking technique is applied for a period of time to induce transmutation of the particles and the consequent reactions of the product with an adjacent particle or a group of particles and the release of energy.



FR2855309
Plasma-free nucleon transmutation comprises use of piezoelectric actuators to produce energy particles compatible with targets             
Inventor:  VITRAC GERAUD VINCENT



WO03098640
PROCESSING RADIOACTIVE MATERIALS WITH HYDROGEN ISOTOPE NUCLEI       
Inventor:  DASH JOHN



US2003210759
Nuclide transmutation device and nuclide transmutation method             
Inventor:  IWAMURA YASUHIRO [JP] ; ITOH TAKEHIKO



US2003156675
System and method for radioactive waste destruction             
Inventor:  VENNERI FRANCESCO [US] ; BAXTER ALAN



US2003138068
Method for transmutation of long-lived radioactive isotopes into short-lived or stable isotopes       
Inventor:  BUTTSEV VLADIMIR STEPANOVICH [RU] ; BUTTSEVA GALINA LECNIDOVNA



JP2004117106
STRUCTURE FOR NUCLIDE TRANSMUTATION AND METHOD FOR FORMING IT       
Inventor:  ITO TAKEHIKO ; SAKANO MITSURU



RU2210630
FACILITY FOR GENERATION OF GAS MIXTURE AND TRANSMUTATION OF NUCLEI OF ATOMS OF CHEMICAL ELEMENTS     Inventor:  KANAREV F M ; PODOBEDOV V    



US2003226401
Atomic structure recognition and modification method and apparatus             
Inventor:  LETOVSKY HOWARD
Also published as: US2005145031 // US2005155340  (A1)     
Abstract -- The present invention provides methods and apparatus for determining the precise makeup of atomic and molecular structures, as well as providing the capability of modifying said structures. The invention uses induced resonant frequency wave effects to define and modify the electromagnetic, electrical, radioactive, atomic weight, and co-valent bonding characteristics of matter. One embodiment of the present invention may produce directionally controllable magnetic fields in gaseous media that interact with magnetically polarized vehicle surfaces to allow high-speed, highly energy efficient inter-planetary space travel. Another embodiment of the invention may neutralize waste products remaining from nuclear fission power production. The invention utilizes controlled multi-spectrum frequency induction to catalyze changes in atomic structures that may include: focused and dramatically amplified release of energy relative to natural states of matter; production of new alloys; transmutation of dangerous organic compounds into non-toxic media; and controlled polarization of matter. The benefits of the invention may include highly efficient interstellar spacecraft propulsion systems, hazardous waste elimination systems, efficient electricity production, and health enhancement of biological organisms.



EP1202290
Nuclide transmutation device and nuclide transmutation method             
Inventor:  IWAMURA YASUHIRO [JP] ; ITOH TAKEHIKO



WO0231833
NUCLEAR TRANSMUTATIONAL PROCESSES
Inventor:  DE GEUS ARIE MELIs



HU0103762
MULTI-STEP, TIME PROGRAMMED PROCEDURE FOR THE TRANSMUTATION OF RADIOACTIVE WASTES AND MULTI-REGION SALT MELT APPARATUS FOR CARRYING OOT THE PROCEDURE       
Inventor:  CSOM GYULA DR [HU] ; ASZODI ATTILA DR



GR3036593
METHOD FOR PREPARING HIGHLY RADIOACTIVE MATERIALS FOR TRANSMUTATION AND/OR BURN-UP       
Inventor:  FUCHS CLAUDE [FR] ; FOURCAUDOT SERGE



US2002169351
Remediation of radioactive waste by stimulated radioactive decay       
Inventor:  BROWN PAUL



RU2212072
METHOD AND DEVICE FOR TRANSMUTATION OF RADIOACTIVE WASTES
Inventor:  LEVADNYJ VALENTIN ALEKSANDROVI [BY] ; RUTKOVSKAJA KRISTINA KONSTANTI



RU2212069
METHOD FOR SOLIDIFYING SOLUTIONS OF LONG-LIVING RADIONUCLIDES       
Inventor:  DZEKUN E G ; KORCHENKIN K



US2002025016
Accelerator-driven transmutation of spent fuel elements
Inventor:  VENNERI FRANCESCO [US] ; WILLIAMSON MARK



RU2156001
RADIOACTIVE WASTE PROCESSING TECHNIQUE
Inventor:  TARATORIN B I ; IVANOV S D



US6233298
Apparatus for transmutation of nuclear reactor waste             
Inventor:  BOWMAN CHARLES



US6233299
Assembly for transmutation of a long-lived radioactive material             
Inventor:  WAKABAYASHI TOSHIO



DE19803629
Transmutation of isotopes with long half life       
Inventor:  HORA HEINRICH



US5848110
Method and apparatus for transmutation of atomic nuclei       
Inventor:  MAENCHEN JOHN ERIC [US] ; RUIZ CARLOS LEON [US]       



WO9919881
LOW TEMPERATURE ELECTROLYTIC NUCLEAR TRANSMUTATION       Inventor:  PATTERSON JAMES A [US] ; MILEY GEORGE



WO9803699
NUCLEAR TRANSMUTED ELEMENTS HAVING UNNATURAL ISOTOPIC DISTRIBUTIONS BY ELECTROLYSIS AND METHOD OF PRODUCTION    Inventor:  PATTERSON JAMES A [US] ; MILEY GEORGE



WO9747015
ACCELERATOR-DRIVEN TRANSMUTATION OF SPENT FUEL ELEMENTS       
Inventor:  VENNERI FRANCESCO [US] ; WILLIAMSON MARK



US6442226
Accelerator-driven transmutation of spent fuel elements
Inventor:  VENNERI FRANCESCO [US] ; WILLIAMSON MARK



WO9740211
SYSTEM, ELECTROLYTIC CELL AND METHOD FOR PRODUCING EXCESS HEAT AND FOR TRANSMUTATION BY ELECTROLYSIS       
Inventor:  PATTERSON JAMES A [US] ; MILEY GEORGE



RU2052223
METHOD FOR PRODUCING STABLE ISOTOPES DUE TO NUCLEAR TRANSMUTATION, SUCH AS LOW-TEMPERATURE NUCLEAR FUSION OF ELEMENTS IN MICROBIOLOGICAL CULTURES             
Inventor:  VYSOTSKIJ VLADIMIR I [RU] ; KORNILOVA ALLA



RU2034414
ACCELERATING COMPLEX FOR TRANSMUTATION OF NUCLEAR PRODUCTION WASTE             
Inventor:  DANILOV MIKHAIL M [RU] ; KATARZHNOV YURIJ



GB2246467
Transmutation treatment of radioactive wastes             

Inventor:  KONASHI KENJI ; SASAO NOBUYUKI       



US4721596
Method for net decrease of hazardous radioactive nuclear waste materials            
Inventor:  MARRIOTT RICHARD [US] ; HENYEY FRANK



EP0030404
Method for net decrease of hazardous radioactive nuclear waste materials.            Inventor:  MARRIOTT RICHARD ; HENYEY FRANK



GB970091
Transmutation of elements             
Inventor: NOEL IGNATIUS RAFFERTY



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