Patents Assigned to Global Medical Isotope Systems LLC
  • Patent number: 9576691
    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 The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.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: February 20, 2015
    Date of Patent: February 21, 2017
    Assignee: Global Medical Isotope Systems LLC
    Inventor: Francis Y Tsang
  • Patent number: 9443629
    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 The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.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: May 11, 2015
    Date of Patent: September 13, 2016
    Assignee: Global Medical Isotope Systems LLC
    Inventor: Francis Y Tsang
  • Publication number: 20150243396
    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 The gaseous fission products can be withdrawn from the irradiation chamber on a continuous basis, and the radioactive iodine isotopes (including I-131) extracted.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: February 20, 2015
    Publication date: August 27, 2015
    Applicant: GLOBAL MEDICAL ISOTOPE SYSTEMS LLC
    Inventor: Francis Y. Tsang
  • Publication number: 20150243395
    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: May 11, 2015
    Publication date: August 27, 2015
    Applicant: GLOBAL MEDICAL ISOTOPE SYSTEMS LLC
    Inventor: Francis Y 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