Patents by Inventor Francis Yu-Hei Tsang

Francis Yu-Hei Tsang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180050911
    Abstract: A system and method for producing tritium are disclosed. The system includes at least one neutron generator configured to generate neutrons. The system further includes at least one target comprising a lithium-containing material. The at least one target is configured to be irradiated by at least some of the neutrons and to produce tritium. The system further includes at least one collection structure configured to receive at least some of the tritium from the at least one target. The at least one collection structure comprises at least one gas conduit having an input configured to receive a carrier gas and an output configured to allow the carrier gas and the received tritium to flow out of the at least one gas conduit after the carrier gas has flowed along the at least one target.
    Type: Application
    Filed: August 21, 2017
    Publication date: February 22, 2018
    Inventor: Francis Yu-Hei Tsang
  • Publication number: 20170236607
    Abstract: A system and method for radioisotope production uses fast-neutron-caused fission of depleted or naturally occurring uranium targets in an irradiation chamber. Fast fission can be enhanced by having neutrons encountering the target undergo scattering or reflection to increase each neutron's probability of causing fission (n, f) reactions in U-238. The U-238 can be deployed as one or more layers sandwiched between layers of neutron-reflecting material, or as rods surrounded by neutron-reflecting material. The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 17, 2017
    Inventor: Francis Yu-Hei Tsang
  • Publication number: 20170032860
    Abstract: A system for radioisotope production uses fast-neutron-caused fission of depleted or naturally occurring uranium targets in an irradiation chamber. Fast fission can be enhanced by having neutrons encountering the target undergo scattering or reflection to increase each neutron's probability of causing fission (n, f) reactions in U-238. The U-238 can be deployed as one or more layers sandwiched between layers of neutron-reflecting material, or as rods surrounded by neutron-reflecting material. The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.
    Type: Application
    Filed: September 12, 2016
    Publication date: February 2, 2017
    Inventor: Francis Yu-Hei Tsang
  • Patent number: 9047997
    Abstract: A system for radioisotope production uses fast-neutron-caused fission of depleted or naturally occurring uranium targets in an irradiation chamber. Fast fission can be enhanced by having neutrons encountering the target undergo scattering or reflection to increase each neutron's probability of causing fission (n, f) reactions in U-238. The U-238 can be deployed as layers sandwiched between layers of neutron-reflecting material, or as rods surrounded by neutron-reflecting material.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: June 2, 2015
    Assignee: GLOBAL MEDICAL ISOTOPE SYSTEMS LLC
    Inventor: Francis Yu-Hei Tsang
  • Patent number: 8989335
    Abstract: A system for radioisotope production uses fast-neutron-caused fission of depleted or naturally occurring uranium targets in an irradiation chamber. Fast fission can be enhanced by having neutrons encountering the target undergo scattering or reflection to increase each neutron's probability of causing fission (n, f) reactions in U-238. The U-238 can be deployed as one or more layers sandwiched between layers of neutron-reflecting material, or as rods surrounded by neutron-reflecting material. The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: March 24, 2015
    Assignee: Global Medical Isotope Systems LLC
    Inventor: Francis Yu-Hei Tsang
  • Patent number: 8094771
    Abstract: The invention describes a product and a method for generating electrical power directly from nuclear power. More particularly, the invention describes the use of a liquid semiconductor as a means for efficiently converting nuclear energy, either nuclear fission and/or radiation energy, directly into electrical energy. Direct conversion of nuclear energy to electrical energy is achieved by placing nuclear material in close proximity to a liquid semiconductor. Nuclear energy emitted from the nuclear material, in the form of fission fragments or radiation, enters the liquid semiconductor and creates electron-hole pairs. By using an appropriate electrical circuit an electrical load is applied and electrical energy generated as a result of the creation of the electron-hole pairs.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: January 10, 2012
    Assignee: Global Technologies, Inc.
    Inventors: Francis Yu-Hei Tsang, Tristan Dieter Juergens, Yale Deon Harker, Kwan Sze Kwok, Nathan Newman, Scott Arden Ploger
  • Patent number: 8073097
    Abstract: The invention describes a product and a method for generating electrical power directly from nuclear power. More particularly, the invention describes the use of a liquid semiconductor as a means for efficiently converting nuclear energy, either nuclear fission and/or radiation energy, directly into electrical energy. Direct conversion of nuclear energy to electrical energy is achieved by placing nuclear material in close proximity to a liquid semiconductor. Nuclear energy emitted from the nuclear material, in the form of fission fragments or radiation, enters the liquid semiconductor and creates electron-hole pairs. By using an appropriate electrical circuit an electrical load is applied and electrical energy generated as a result of the creation of the electron-hole pairs.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: December 6, 2011
    Assignee: Global Technologies, Inc.
    Inventors: Francis Yu-Hei Tsang, Tristan Dieter Juergens, Yale Deon Harker, Kwan Sze Kwok, Nathan Newman, Scott Arden Ploger
  • Publication number: 20110286565
    Abstract: A system for radioisotope production uses fast-neutron-caused fission of depleted or naturally occurring uranium targets in an irradiation chamber. Fast fission can be enhanced by having neutrons encountering the target undergo scattering or reflection to increase each neutron's probability of causing fission (n, f) reactions in U-238. The U-238 can be deployed as one or more layers sandwiched between layers of neutron-reflecting material, or as rods surrounded by neutron-reflecting material. The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.
    Type: Application
    Filed: November 11, 2010
    Publication date: November 24, 2011
    Applicant: MiPod Nuclear Inc.
    Inventor: Francis Yu-Hei Tsang
  • Publication number: 20110280356
    Abstract: A system for radioisotope production uses fast-neutron-caused fission of depleted or naturally occurring uranium targets in an irradiation chamber. Fast fission can be enhanced by having neutrons encountering the target undergo scattering or reflection to increase each neutron's probability of causing fission (m, f) reactions in U-238. The U-238 can be deployed as layers sandwiched between layers of neutron-reflecting material, or as rods surrounded by neutron-reflecting material.
    Type: Application
    Filed: November 11, 2010
    Publication date: November 17, 2011
    Applicant: MiPod Nuclear Inc.
    Inventor: Francis Yu-Hei Tsang
  • Publication number: 20110274233
    Abstract: The invention describes a product and a method for generating electrical power directly from nuclear power. More particularly, the invention describes the use of a liquid semiconductor as a means for efficiently converting nuclear energy, either nuclear fission and/or radiation energy, directly into electrical energy. Direct conversion of nuclear energy to electrical energy is achieved by placing nuclear material in close proximity to a liquid semiconductor. Nuclear energy emitted from the nuclear material, in the form of fission fragments or radiation, enters the liquid semiconductor and creates electron-hole pairs. By using an appropriate electrical circuit an electrical load is applied and electrical energy generated as a result of the creation of the electron-hole pairs.
    Type: Application
    Filed: November 21, 2003
    Publication date: November 10, 2011
    Inventors: Francis Yu-Hei Tsang, Tristan Dieter Juergens, Yale Deon Harker, Kwan Sze Kwok, Nathan Newman, Scott Arden Ploger