Patents Represented by Attorney C. Daniel Cornish
  • Patent number: 4172236
    Abstract: A method for the production of high current pulses of heavy ions having an atomic weight greater than 100. Also a linear accelerator based apparatus for carrying out said method. Pulses formed by the method of the subject invention are suitable for storage in a storage ring. The accumulated pulses may be used in inertial fusion apparatus.
    Type: Grant
    Filed: June 16, 1978
    Date of Patent: October 23, 1979
    Assignee: The United States as represented by the United States Department of Energy
    Inventor: Alfred W. Maschke
  • Patent number: 4164373
    Abstract: This invention provides different length glass fibers for providing a broad range of optical time delays for short incident chromatic light pulses for the selective spatial and frequency analysis of the light with a single light detector. To this end, the frequencies of the incident light are orientated and matched with the different length fibers by dispersing the separate frequencies in space according to the respective fiber locations and lengths at the input terminal of the glass fibers. This makes the different length fibers useful in the field of plasma physics. To this end the short light pulses can be scattered by a plasma and then passed through the fibers for analyzing and diagnosing the plasma while it varies rapidly with time.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: August 14, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Jack J. Schuss, Larry C. Johnson
  • Patent number: 4149931
    Abstract: A poloidal divertor for a toroidal plasma column ring having a set of poloidal coils co-axial with the plasma ring for providing a space for a thick shielding blanket close to the plasma along the entire length of the plasma ring cross section and all the way around the axis of rotation of the plasma ring. The poloidal coils of this invention also provide a stagnation point on the inside of the toroidal plasma column ring, gently curving field lines for vertical stability, an initial plasma current, and the shaping of the field lines of a separatrix up and around the shielding blanket.
    Type: Grant
    Filed: July 16, 1973
    Date of Patent: April 17, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Uffe R. Christensen
  • Patent number: 4065351
    Abstract: This invention provides a poloidal divertor for stacking counterstreaming ion beams to provide high intensity colliding beams. To this end, method and apparatus are provided that inject high energy, high velocity, ordered, atomic deuterium and tritium beams into a lower energy, toroidal, thermal equilibrium, neutral, target plasma column that is magnetically confined along an endless magnetic axis in a strong restoring force magnetic field having helical field lines to produce counterstreaming deuteron and triton beams that are received bent, stacked and transported along the endless axis, while a poloidal divertor removes thermal ions and electrons all along the axis to increase the density of the counterstreaming ion beams and the reaction products resulting therefrom. By balancing the stacking and removal, colliding, strong focused particle beams, reaction products and reactions are produced that convert one form of energy into another form of energy.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: December 27, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Daniel L. Jassby, Russell M. Kulsrud
  • Patent number: 4065350
    Abstract: This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.
    Type: Grant
    Filed: July 9, 1974
    Date of Patent: December 27, 1977
    Assignee: The United States Government as represented by the Department of Energy
    Inventor: George V. Sheffield
  • Patent number: 4057462
    Abstract: Electromagnetic (E.M.) energy injection method and apparatus for producing and sustaining suprathermal ordered ions in a neutral, two-ion-species, toroidal, bulk equilibrium plasma. More particularly, the ions are produced and sustained in an ordered suprathermal state of existence above the average energy and velocity of the bulk equilibrium plasma by resonant rf energy injection in resonance with the natural frequency of one of the ion species. In one embodiment, the electromagnetic energy is injected to clamp the energy and velocity of one of the ion species so that the ion energy is increased, sustained, prolonged and continued in a suprathermal ordered state of existence containing appreciable stored energy that counteracts the slowing down effects of the bulk equilibrium plasma drag. Thus, selective deuteron absorption may be used for ion-tail creation by radio-frequency excitation alone.
    Type: Grant
    Filed: February 26, 1975
    Date of Patent: November 8, 1977
    Assignee: The United States of America as represented by the United States Energy Research and Development Administration
    Inventors: Daniel L. Jassby, William M. Hooke