Patents by Inventor Mohit Tyagi

Mohit Tyagi 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).

  • Patent number: 11584885
    Abstract: A method of tailoring the properties of garnet-type scintillators to meet the particular needs of different applications is described. More particularly, codoping scintillators, such as Gd3Ga3Al2O12, Gd3Ga2Al3O12, or other rare earth gallium aluminum garnets, with different ions can modify the scintillation light yield, decay time, rise time, energy resolution, proportionality, and/or sensitivity to light exposure. Also provided are the codoped garnet-type scintillators themselves, radiation detectors and related devices comprising the codoped garnet-type scintillators, and methods of using the radiation detectors to detect gamma rays, X-rays, cosmic rays, and particles having an energy of 1 keV or greater.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: February 21, 2023
    Assignee: University of Tennessee Research Foundation
    Inventors: Mohit Tyagi, Merry Koschan, Charles L. Melcher, Samuel Bradley Donnald
  • Patent number: 10996347
    Abstract: Example embodiments of a radiation detection system including a detector is described. The detector can include a scintillator, a sensor, and a light source. The radiation detection system can further include a controller programmed to control the light source to expose the scintillator to a light to saturate traps in the scintillator. In some embodiments, the detector can further include a second light source, and the controller is programmed to control the second light source to expose the scintillator to a second light to detrap afterglow traps in the scintillator.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: May 4, 2021
    Assignee: University of Tennessee Research Foundation
    Inventors: Charles L. Melcher, Mohit Tyagi, Merry Koschan, Peter Carl Cohen, Matthias Schmand, Mark S. Andreaco, Lars Aldon Eriksson
  • Patent number: 10942283
    Abstract: The present invention discloses single crystal based phoswich detector for discriminating various kinds of radiations. The invented phoswich detector comprises a single crystal based scintillator having at least a pair of single crystals with identical refractive indices and different scintillation kinetics and a photo-sensor coupled to the single crystal based scintillator to detect a scintillation light pulse generated through interaction of radiation elements with the pair of the single crystals for discrimination of different kinds of radiation elements based on a dissimilarity in the scintillation light pulse shapes generated through the interactions.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: March 9, 2021
    Assignee: SECRETARY, DEPARTMENT OF ATOMIC ENERGY
    Inventors: Mohit Tyagi, Sheetal Rawat, Sanjay C Gadkari
  • Publication number: 20200301028
    Abstract: The present invention discloses single crystal based phoswich detector for discriminating various kinds of radiations. The invented phoswich detector comprises a single crystal based scintillator having at least a pair of single crystals with identical refractive indices and different scintillation kinetics and a photo-sensor coupled to the single crystal based scintillator to detect a scintillation light pulse generated through interaction of radiation elements with the pair of the single crystals for discrimination of different kinds of radiation elements based on a dissimilarity in the scintillation light pulse shapes generated through the interactions.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 24, 2020
    Applicant: Secretary, Department of Atomic Energy
    Inventors: Mohit TYAGI, Sheetal RAWAT, Sanjay C GADKARI
  • Publication number: 20170219719
    Abstract: A radiation detection system may include a detector. The detector may include a scintillator to convert ionizing radiation, which originates externally to the detector, into visible light, a sensor configured to detect the visible light from the scintillator, and a light source. The radiation detection system may further include a controller programmed to control the light source to expose the scintillator to a light to saturate traps in the scintillator.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Charles L. Melcher, Mohit Tyagi, Merry Koschan, Peter Carl Cohen, Matthias Schmand, Mark S. Andreaco, Lars Aldon Eriksson
  • Patent number: 9664799
    Abstract: A radiation detector may include a scintillator, a light source, and a sensor. The scintillator may include various scintillation materials capable of converting non-visible radiation (incoming radiation) into visible light. The sensor may be placed in adjacent or in close proximity to the scintillator, such that any converted visible light may be detected or measured by the sensor. The light source may be placed in adjacent or in close proximity to the scintillator, such that light from the light source may interact with defects in the scintillator to minimize interference on the conversion of non-visible radiation into visible light caused by the defects.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: May 30, 2017
    Assignees: University of Tennessee Research Foundation, Siemens Molecular Imaging
    Inventors: Charles L. Melcher, Mohit Tyagi, Merry Koschan, Peter Carl Cohen, Matthias Schmand, Mark S. Andreaco, Lars Aldon Eriksson
  • Patent number: 9335426
    Abstract: A radiation sensor may include a scintillator, a reflector, and a sensor. The scintillator may be capable of converting non-visible radiation into scintillation light. The reflector may be formed from material of outside surfaces of the scintillator, to reflect the scintillation light. The sensor may be positioned in proximity to the scintillator, to detect the scintillation light from the scintillator. A method of manufacturing a scintillator with an intrinsic reflector may include heating the scintillator in an oxygen-deficient environment at a first temperature for a first predetermined time period, and optionally annealing the scintillator in an oxygenated environment at a second temperature for a second predetermined time period.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 10, 2016
    Assignee: University of Tennessee Research Foundation
    Inventors: Merry Koschan, Mohit Tyagi
  • Publication number: 20160124094
    Abstract: A radiation detector may include a scintillator, a light source, and a sensor. The scintillator may include various scintillation materials capable of converting non-visible radiation (incoming radiation) into visible light. The sensor may be placed in adjacent or in close proximity to the scintillator, such that any converted visible light may be detected or measured by the sensor. The light source may be placed in adjacent or in close proximity to the scintillator, such that light from the light source may interact with defects in the scintillator to minimize interference on the conversion of non-visible radiation into visible light caused by the defects.
    Type: Application
    Filed: June 12, 2014
    Publication date: May 5, 2016
    Inventors: Charles L. Melcher, Mohit Tyagi, Merry Koschan, Peter Carl Cohen, Matthias Schmand, Mark S. Andreaco, Lars Aldon Eriksson
  • Publication number: 20150353822
    Abstract: A method of tailoring the properties of garnet-type scintillators to meet the particular needs of different applications is described. More particularly, codoping scintillators, such as Gd3Ga3AI2012, Gd3Ga2AI3012, or other rare earth gallium aluminum garnets, with different ions can modify the scintillation light yield, decay time, rise time, energy resolution, proportionality, and/or sensitivity to light exposure. Also provided are the codoped garnet-type scintillators themselves, radiation detectors and related devices comprising the codoped garnet-type scintillators, and methods of using the radiation detectors to detect gamma rays, X-rays, cosmic rays, and particles having an energy of 1 keV or greater.
    Type: Application
    Filed: January 23, 2014
    Publication date: December 10, 2015
    Inventors: Mohit Tyagi, Merry Koschan, Charles L. Melcher, Samuel Bradley Donnald
  • Publication number: 20150034829
    Abstract: A radiation sensor may include a scintillator, a reflector, and a sensor. The scintillator may be capable of converting non-visible radiation into scintillation light. The reflector may be formed from material of outside surfaces of the scintillator, to reflect the scintillation light. The sensor may be positioned in proximity to the scintillator, to detect the scintillation light from the scintillator. A method of manufacturing a scintillator with an intrinsic reflector may include heating the scintillator in an oxygen-deficient environment at a first temperature for a first predetermined time period, and optionally annealing the scintillator in an oxygenated environment at a second temperature for a second predetermined time period.
    Type: Application
    Filed: July 24, 2014
    Publication date: February 5, 2015
    Inventors: Merry Koschan, Mohit Tyagi