Patents by Inventor Barbara A. Marcheschi

Barbara A. Marcheschi 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: 11767259
    Abstract: A copper-doped glass formed by placing a target glass in a container, surrounding the target glass with a powder mixture comprised of SiO2 powder and Cu2S powder, wherein the SiO2 powder and the Cu2S powder are mixed according to the formula (SiO2)(1-x)(Cu2S)x, where 0.01<x<0.1, and heated to a temperature of between 800° C. and 1150° C. for a duration of between 1 and 10 hours.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: September 26, 2023
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Brian L. Justus, Alan L. Huston, Barbara A. Marcheschi
  • Patent number: 11029428
    Abstract: Compositions including additive manufacturing materials incorporating radiological detection materials therein are provided. Also provided are apparatus and methods, which may be utilized to monitor and measure nuclear criticality events, and determine if personnel have been exposed to ionizing radiation. The compositions, apparatus, and methods beneficially improve accuracy in assessing radiation exposure, particularly neutron exposure, and reduce degradation of the radiological detection materials.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Luis A. Benevides, Alan L. Huston, Brian L. Justus, Barbara A. Marcheschi
  • Patent number: 11028016
    Abstract: A method of making a copper-doped glass comprising placing a target glass in a container, placing a target glass in a container, surrounding the target glass with a powder mixture comprised of fused silica (SiO2) powder and copper sulfide (Cu2S) powder, such that both the target glass and the surrounding powder are contained in the container, and heating the container and the target glass and the surrounding powder mixture to a temperature of between 800° C. and 1150° C.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 8, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Brian L. Justus, Alan L. Huston, Barbara A. Marcheschi
  • Publication number: 20210094872
    Abstract: A copper-doped glass formed by placing a target glass in a container, surrounding the target glass with a powder mixture comprised of SiO2 powder and Cu2S powder, wherein the SiO2 powder and the Cu2S powder are mixed according to the formula (SiO2)(1-x)(Cu2S)x, where 0.01<x<0.1, and heated to a temperature of between 800° C. and 1150° C. for a duration of between 1 and 10 hours.
    Type: Application
    Filed: December 10, 2020
    Publication date: April 1, 2021
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Brian L. Justus, Alan L. Huston, Barbara A. Marcheschi
  • Publication number: 20190039948
    Abstract: A method of making a copper-doped glass comprising placing a target glass in a container, placing a target glass in a container, surrounding the target glass with a powder mixture comprised of fused silica (SiO2) powder and copper sulfide (Cu2S) powder, such that both the target glass and the surrounding powder are contained in the container, and heating the container and the target glass and the surrounding powder mixture to a temperature of between 800° C. and 1150° C.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Brian L. Justus, Alan L. Huston, Barbara A. Marcheschi
  • Patent number: 10125048
    Abstract: A copper dopant delivery powder comprising a fused silica powder and a Cu2S powder. A method of making the copper dopant delivery powder. A method of making a copper-doped glass comprising placing a target glass in a container, packing a composite SiO.CuS dopant powder around the target glass and heating the container and SiO.CuS dopant powder to a temperature of between 800° C. and 1150° C. A copper-doped glass comprising a glass comprising copper-doping wherein the copper-doped glass was formed by covering the glass with a fused silica powder and a Cu2S powder, wherein the fused silica powder and the Cu2S powder are mixed in varying ratios of Cu2S to silica represented by the formula (SiO2)(1-x)(Cu2S)x and heating to a temperature of between 800° C. and 1150° C.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: November 13, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Brian L. Justus, Alan L. Huston, Barbara A. Marcheschi
  • Publication number: 20170240457
    Abstract: A copper dopant delivery powder comprising a fused silica powder and a Cu2S powder. A method of making the copper dopant delivery powder. A method of making a copper-doped glass comprising placing a target glass in a container, packing a composite SiO.CuS dopant powder around the target glass and heating the container and SiO.CuS dopant powder to a temperature of between 800° C. and 1150° C. A copper-doped glass comprising a glass comprising copper-doping wherein the copper-doped glass was formed by covering the glass with a fused silica powder and a Cu2S powder, wherein the fused silica powder and the Cu2S powder are mixed in varying ratios of Cu2S to silica represented by the formula (SiO2)(1-x)(Cu2S)x and heating to a temperature of between 800° C. and 1150° C.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 24, 2017
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Brian L. Justus, Alan L. Huston, Barbara A. Marcheschi
  • Patent number: 9121948
    Abstract: An optically stimulated luminescence (OSL) dosimeter system. An OSL reader configured to produce data indicative of a radiation exposure, one or more OSL dosimeters fabricated from a thermoluminescent material, a light stimulation source configured to stimulate the OSL dosimeter to produce luminescence emissions, and a light-detection system that measures the intensity of such luminescence emissions and converts the electrical signal to a binary string that can be processed by an appropriately programmed computer configured to analyze data from the reader and produce data indicative of an extent of radiation exposure. Dose information is obtained without requiring heating of the dosimeter. The dosimeter can be interrogated multiple times with minimal loss of dose information.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 1, 2015
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Barbara A. Marcheschi, Brian L. Justus, Alan L. Huston
  • Publication number: 20140264045
    Abstract: An optically stimulated luminescence (OSL) dosimeter system. An OSL reader configured to produce data indicative of a radiation exposure, one or more OSL dosimeters fabricated from a thermoluminescent material, a light stimulation source configured to stimulate the OSL dosimeter to produce luminescence emissions, and a light-detection system that measures the intensity of such luminescence emissions and converts the electrical signal to a binary string that can be processed by an appropriately programmed computer configured to analyze data from the reader and produce data indicative of an extent of radiation exposure. Dose information is obtained without requiring heating of the dosimeter. The dosimeter can be interrogated multiple times with minimal loss of dose information.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 18, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Barbara A. Marcheschi, Brian L. Justus, Alan L. Huston