Patents by Inventor Jang-Lyul Kim

Jang-Lyul Kim 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: 7592609
    Abstract: Disclosed herein are a thermoluminescent dosimeter for radiation monitoring, comprising LiF doped with Mg, Cu and Si, and a fabrication method thereof. The LiF:Mg,Cu,Si thermoluminescent dosimeter is fabricated by heating a LiF-based thermoluminescent powder material having a composition of LiF mother material, 0.1-0.5 mol % of a Mg compound, 0.001-0.05 mol % of a Cu compound and 0.5-1.3 mol % of a Si compound to a temperature of 900-1200° C. to melt the LiF-based material, cooling the melted material, compression-molding the cooled material, sintering the molded material, cooling the sintered material, and then annealing the cooled material. The thermoluminescent dosimeter has high thermal stability and thus maintains constant thermoluminescence sensitivity even when it is annealed at a high temperature of more than 240° C.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: September 22, 2009
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co. Ltd.
    Inventors: Jang-Lyul Kim, Jung-Il Lee, Jeong-Sun Yang, Bong-Hwan Kim, Jong-Soo Kim
  • Publication number: 20080142731
    Abstract: Disclosed herein are a thermoluminescent dosimeter for radiation monitoring, comprising LiF doped with Mg, Cu and Si, and a fabrication method thereof. The LiF:Mg,Cu,Si thermoluminescent dosimeter is fabricated by heating a LiF-based thermoluminescent powder material having a composition of LiF mother material, 0.1-0.5 mol % of a Mg compound, 0.001-0.05 mol % of a Cu compound and 0.5-1.3 mol % of a Si compound to a temperature of 900-1200° C. to melt the LiF-based material, cooling the melted material, compression-molding the cooled material, sintering the molded material, cooling the sintered material, and then annealing the cooled material. The thermoluminescent dosimeter has high thermal stability and thus maintains constant thermoluminescence sensitivity even when it is annealed at a high temperature of more than 240° C.
    Type: Application
    Filed: April 26, 2007
    Publication date: June 19, 2008
    Applicants: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Jang-Lyul Kim, Jung-Il Lee, Jeong-Sun Yang, Bong-Hwan Kim, Jong-Soo Kim
  • Patent number: 7005084
    Abstract: The disclosure concerns a pellet type LiF element for a thermoluminescent dosimetry (TLD) and its preparation. More particularly, the disclosure concerns the pellet type LiF element for a thermoluminescent dosimetry (TLD) which includes 0.35˜0.12% by mole of Mg source; 0.08˜0.001% by mole of Cu source; 1.3˜0.5% by mole of Na source; and 1.3˜0.5% by mole of Si source as dopants. The pellet type LiF element according to the present invention shows excellent sensitivity and has the preferred glow curve with a simple and single main peak.
    Type: Grant
    Filed: January 12, 2002
    Date of Patent: February 28, 2006
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Jang-Lyul Kim, Si-Young Chang, Jung-Il Lee, Jeong-Sun Yang, Young-Mi Nam
  • Publication number: 20030157005
    Abstract: The disclosure concerns a pellet type LiF element for a thermoluminescent dosimetry (TLD) and its preparation. More particularly, the disclosure concerns the pellet type LiF element for a thermoluminescent dosimetry (TLD) which includes 0.35˜0.12 % by mole of Mg source; 0.08˜0.001 % by mole of Cu source; 1.3˜0.5 % by mole of Na source; and 1.3˜0.5 % by mole of Si source as dopants. The pellet type LiF element according to the present invention shows excellent sensitivity and has the preferred glow curve with a simple and single main peak.
    Type: Application
    Filed: September 19, 2002
    Publication date: August 21, 2003
    Inventors: Jang-Lyul Kim, Si-Young Chang, Jung-Il Lee, Jeong-Sun Yang, Young-Mi Nam
  • Patent number: 6586752
    Abstract: Disclosed are a CaSO4 based TL detector bonded with phosphorous compound and a method for fabricating thereof. The CaSO4 based TL detector can be fabricated by mixing CaSO4 based TL powder with a phosphorous precursor; molding the mixture powder under pressure; and sintering the molded body. The TL detector has so high TL sensitivity as to effectively measure personnel dose equivalent and low dose detection. It can be also manufactured in various forms and is easily handled, finding numerous applications in personnel and environmental monitoring fields.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: July 1, 2003
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Jang-Lyul Kim, Si-Young Chang, Douying Jin, Jeong-Sun Yang, Young-Mi Nam, Jung-Il Lee