Patents by Inventor Yongchun Xiang

Yongchun Xiang 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).

  • Method and system to separate and measure Ar quickly
    Patent number: 7462836
    Abstract: The present invention relates to the method and equipment for inspecting nuclear experimental locales, and particularly relates to the method and system for separating and measuring 37Ar quickly. The method of the invention comprises the steps of sampling, eliminating impurities, separating, purifying, measuring the sum of Ar, collecting Ar, measuring the activity of 37Ar, etc. The control unit in the system of the invention connects respectively to a sampling unit, a separating-purifying unit, and a radioactivity measuring unit which are connected in turn, and a computer and the software of the control unit are in charge of the automatic operation, measurement and data-collection of the whole system. The method and system for quickly separating and measuring 37Ar of the patent can meet the requirements of locales inspection for Comprehensive Test Ban Treaty (CTBT), the sensitivity of measuring 37Ar is high, so do the production and purity of Ar.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: December 9, 2008
    Assignee: Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics
    Inventors: Wei Li, Hongxia Wang, Rongliang Duan, Zhishang Bian, Yongchun Xiang, Meiying He, Jian Gong
  • Method and System to Separate and Measure 37Ar Quickly
    Publication number: 20080028830
    Abstract: The present invention relates to the method and equipment for inspecting nuclear experimental locales, and particularly relates to the method and system for separating and measuring 37Ar quickly. The method of the invention comprises the steps of sampling, eliminating impurities, separating, purifying, measuring the sum of Ar, collecting Ar, measuring the activity of 37Ar, etc. The control unit in the system of the invention connects respectively to a sampling unit, a separating-purifying unit, and a radioactivity measuring unit which are connected in turn, and a computer and the software of the control unit are in charge of the automatic operation, measurement and data-collection of the whole system. The method and system for quickly separating and measuring 37Ar of the patent can meet the requirements of locales inspection for Comprehensive Test Ban Treaty (CTBT), the sensitivity of measuring 37Ar is high, so do the production and purity of Ar.
    Type: Application
    Filed: December 20, 2004
    Publication date: February 7, 2008
    Inventors: Wei Li, Hongxia Wang, Rongliang Duan, Zhishang Bian, Yongchun Xiang, Meiying He, Jian Gong