Patents by Inventor RAMISH ASHRAF

RAMISH ASHRAF 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: 20260041936
    Abstract: A system provides a pulsed radiation beam along an axis; a scintillator blanket or a scintillator mask conformable to a surface of a target area of a patient; and a camera to image the scintillator from a distance. The system includes an image processor configured to use images of the scintillator to measure radiation dosage provided by each pulse of the beam, totalize radiation dosage provided by pulses of the beam, and provide signals to a controller. A method of monitoring radiation treatment includes placing a scintillator on a target area; providing a radiation beam through the scintillator into the target area; using a camera to image from a distance; and applying dose calibration factors, angular emission correction factors, and a measured 3D surface of the scintillator, to generate maps of dose and dose rate in a geometric plane perpendicular to an axis of the radiation beam.
    Type: Application
    Filed: June 18, 2024
    Publication date: February 12, 2026
    Inventors: PETR BRUZA, BRIAN POGUE, RAMISH ASHRAF, RONGXIAO ZHANG, DAVID GLADSTONE, MEGAN CLARK, ROMAN VASYLTSIV
  • Patent number: 12036421
    Abstract: A system for delivering ultra-high dose rate irradiation to a target area of a patient, includes a pulsed charged-particle source along a beam axis; a collimator for shaping the beam of radiation; one or more cameras for imaging the target area of the patient; and a dosimetry controller for providing control signals to the charged-particle source one or more dosimeters positioned between an output of the charged-particle source and the collimator in beam fringes for measuring a radiation dosage provided by each pulse; and a beam scanning coil positioned between the collimator and the patient for directing the shaped beam. The dosimetry controller receives feedback from the one or more dosimeters and provides control signals to the particle source and the beam scanning coil that modulate final pulses in the series of pulses in real-time.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: July 16, 2024
    Assignee: THE TRUSTEES OF DARTMOUTH COLLEGE
    Inventors: Petr Bruza, Brian Pogue, Ramish Ashraf, Rongxiao Zhang, David Gladstone, Megan Clark, Roman Vasyltsiv
  • Publication number: 20240173569
    Abstract: A system for delivering ultra-high dose rate irradiation to a target area of a patient, includes a pulsed charged-particle source along a beam axis; a collimator for shaping the beam of radiation; one or more cameras for imaging the target area of the patient; and a dosimetry controller for providing control signals to the charged-particle source one or more dosimeters positioned between an output of the charged-particle source and the collimator in beam fringes for measuring a radiation dosage provided by each pulse; and a beam scanning coil positioned between the collimator and the patient for directing the shaped beam. The dosimetry controller receives feedback from the one or more dosimeters and provides control signals to the particle source and the beam scanning coil that modulate final pulses in the series of pulses in real-time.
    Type: Application
    Filed: May 25, 2022
    Publication date: May 30, 2024
    Inventors: PETR BRUZA, BRIAN POGUE, RAMISH ASHRAF, RONGXIAO ZHANG, DAVID GLADSTONE