Patents by Inventor WIM LEEMANS

WIM LEEMANS 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).

  • Devices and methods for creating plasma channels for laser plasma acceleration
    Patent number: 11438999
    Abstract: This disclosure provides systems, methods, and apparatus related to devices and methods for creating hollow, near-hollow, and parabolic plasma channels. In one aspect, a device includes a block of material and a cooling system. The block of material defines a channel having a cylindrical shape and having a first open end and a second open end. An axis of the channel lies along a straight line. The block of material further defines a first gas port and a second gas port. The first gas port and the second gas port are in fluid communication with channel. The cooling system is operable to cool the channel to below the freezing point of a gas.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 6, 2022
    Assignee: The Regents of the University of California
    Inventors: Wim Leemans, Kelly Swanson, Hann-Shin Mao, Don Syversrud, Anthony Gonsalves, Tyler Sipla
  • DEVICES AND METHODS FOR CREATING PLASMA CHANNELS FOR LASER PLASMA ACCELERATION
    Publication number: 20210212190
    Abstract: This disclosure provides systems, methods, and apparatus related to devices and methods for creating hollow, near-hollow, and parabolic plasma channels. In one aspect, a device includes a block of material and a cooling system. The block of material defines a channel having a cylindrical shape and having a first open end and a second open end. An axis of the channel lies along a straight line. The block of material further defines a first gas port and a second gas port. The first gas port and the second gas port are in fluid communication with channel. The cooling system is operable to cool the channel to below the freezing point of a gas.
    Type: Application
    Filed: November 9, 2020
    Publication date: July 8, 2021
    Applicant: The Regents of the University of California
    Inventors: Wim Leemans, Kelly Swanson, Hann-Shin Mao, Don Syversrud, Anthony Gonsalves, Tyler Sipla
  • Shock injector for low-laser energy electron injection in a laser plasma accelerator
    Patent number: 10433412
    Abstract: This disclosure provides systems, methods, and apparatus related to laser plasma accelerators. In one aspect a block of material defines a gas inlet, a chamber in fluid communication with the gas inlet, a throat in fluid communication with the chamber, a channel in fluid communication with the throat, and a gas outlet in fluid communication with the channel. The throat is configured to generate a supersonic flow of a gas when the gas flows through the throat. The channel includes a ramp that is positioned proximate the gas outlet, with the ramp being inclined at an angle with respect to a direction of a flow of the gas proximate a surface of the channel prior to the ramp at the gas outlet.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: October 1, 2019
    Assignee: The Regents of the University of California
    Inventors: Hann-Shin Mao, Wim Leemans, Stepan Bulanov
  • SHOCK INJECTOR FOR LOW-LASER ENERGY ELECTRON INJECTION IN A LASER PLASMA ACCELERATOR
    Publication number: 20180168024
    Abstract: This disclosure provides systems, methods, and apparatus related to laser plasma accelerators. In one aspect a block of material defines a gas inlet, a chamber in fluid communication with the gas inlet, a throat in fluid communication with the chamber, a channel in fluid communication with the throat, and a gas outlet in fluid communication with the channel. The throat is configured to generate a supersonic flow of a gas when the gas flows through the throat. The channel includes a ramp that is positioned proximate the gas outlet, with the ramp being inclined at an angle with respect to a direction of a flow of the gas proximate a surface of the channel prior to the ramp at the gas outlet.
    Type: Application
    Filed: February 12, 2018
    Publication date: June 14, 2018
    Inventors: Hann-Shin Mao, Wim Leemans, Stepan Bulanov
  • Laser accelerator driven particle brachytherapy devices, systems, and methods
    Patent number: 8878464
    Abstract: A laser accelerator driven electronic brachytherapy system, device, and method for particle based treatment of a tumor or other human diseases and conditions.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: November 4, 2014
    Assignees: Varian Medical Systems Inc., The Regents of the University of California
    Inventors: James E. Clayton, Paul A. Lovoi, Wim Leemans
  • LASER ACCELERATOR DRIVEN PARTICLE BRACHYTHERAPY DEVICES, SYSTEMS, AND METHODS
    Publication number: 20120080618
    Abstract: A laser accelerator driven electronic brachytherapy system, device, and method for particle based treatment of a tumor or other human diseases and conditions.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Inventors: JAMES E. CLAYTON, PAUL A. LOVOI, WIM LEEMANS